Answer:
SELECT
NOW() AS 'today_unformatted',
DATE_FORMAT(NOW(), '%d-%b-%Y') AS 'today_formatted';
Explanation:
%d represents date.
%b represents month.
%Y represents year.
Why were the practitioners of alternative software development methods not satisfied with the traditional waterfall method?
The traditional waterfall method involves the breakdown of projects into
linear sequential phases. This method didn't give enough room for changes
to be made during testing stages.
The practitioners of alternative software development methods were not
satisfied with the traditional waterfall method due to other reasons such as:
Inferior quality.Bad visibility.Large risk etc.Read more about Waterfall method here https://brainly.com/question/25655550
It should be noted that the practitioners of alternative software development methods not satisfied with the traditional waterfall method because;
Of inability to make changes during testing stages.Large riskInferiority quality.The traditional waterfall method in software development can be regarded as a method which involves development of the projects base on linear sequential phases.
However, this method doesn't allow to make changes Incase their is an error during testing stages.
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Write a program that fills half the canvas with circles in a diagonal formation.
Have Tracy draw circles along the width of the canvas on the bottom row. Have the number of circles decrease by 1 on each iteration until there is only 1 circle on the top row.
Answer:
Explanation:
function draw()
{
var ctx = document.getElementById("myCanvas").getContext("2d");
var counter = 0;
for (var i=0;i<6;i++)
{
for (var j=0;j<6;j++)
{
//Start from white and goes to black
ctx.fillStyle = "rgb(" + Math.floor(255-42.5*i) + "," + Math.floor(255-42.5*i) +
"," + Math.floor(255-42.5*j) + ")";
ctx.beginPath();
if (i === counter && j === counter)
{
//creates the circles
ctx.arc(25+j*50,30+i*50,20,0,Math.PI*2,true);
ctx.fill();
//creates a border around the circles so white one will be vissible
ctx.stroke();
}
}
counter++;
}
}
draw();
If there are 8 opcodes and 10 registers, a. What is the minimum number of bits required to represent the OPCODE? b. What is the minimum number of bits required to represent the Destination Register (DR)? c. What is maximum number of UNUSED bits in the instruction encoding?
Answer:
For 32 bits Instruction Format:
OPCODE DR SR1 SR2 Unused bits
a) Minimum number of bits required to represent the OPCODE = 3 bits
There are 8 opcodes. Patterns required for these opcodes must be unique. For this purpose, take log base 2 of 8 and then ceil the result.
Ceil (log2 (8)) = 3
b) Minimum number of bits For Destination Register(DR) = 4 bits
There are 10 registers. For unique register values take log base 2 of 10 and then ceil the value. 4 bits are required for each register. Hence, DR, SR1 and SR2 all require 12 bits in all.
Ceil (log2 (10)) = 4
c) Maximum number of UNUSED bits in Instruction encoding = 17 bits
Total number of bits used = bits used for registers + bits used for OPCODE
= 12 + 3 = 15
Total number of bits for instruction format = 32
Maximum No. of Unused bits = 32 – 15 = 17 bits
OPCODE DR SR1 SR2 Unused bits
3 bits 4 bits 4 bits 4 bits 17 bits
Final answer:
To represent 8 opcodes, 3 bits are required; for 10 registers, a minimum of 4 bits is needed. Therefore, if using a 32-bit instruction encoding, there would be 25 unused bits.
Explanation:
If we consider the scenario where there are 8 opcodes and 10 registers, we can figure out the minimum number of bits required for representing each by understanding how numbers are represented in binary.
a. Minimum number of bits to represent the OPCODE: To represent 8 opcodes, a minimum of 3 bits is required. This is because 22 (or 4) is too small to represent 8 distinct values, but 23 (or 8) is just right.b. Minimum number of bits to represent the Destination Register (DR): To represent 10 registers, we need at least 4 bits. This is because 23 (or 8) is not enough to represent 10, but 24 (or 16) provides enough unique combinations for 10 registers.c. Maximum number of UNUSED bits in the instruction encoding: This part of the question might refer to how instruction encoding is designed with a fixed size, for instance, 32 bits. If the only information required is the opcode and the destination register, using 7 bits in total, then there are 25 unused bits if we consider 32-bit instruction encoding.Understanding these numbers helps with the basics of how computer instructions and machine code are structured, which is essential knowledge in computer architecture and programming.
If 2 bits of a byte are in error when the byte is read from ECC memory, can ECC detect the error? Can it fix the error?
Answer:
Explanation:
Error-correcting code memory (ECC memory) these kinds of memories can detect and correct errors but only in single bit of the byte, in this case, if there is more than one bit, for example, two bits, the ECC memory can detect the error but cannot fix it, there are some memories without ECC can detect errors but not correct it.
Develop a menu-driven program that inputs two numbers and, at the user’s option, finds their sum, difference, product, or quotient.
Answer:
import java.util.Scanner;
public class TestClock {
public static void main(String[] args) {
Scanner in = new Scanner(System.in);
System.out.println("Enter num 1");
double num1 = in.nextDouble();
System.out.println("Enter num 2");
double num2 = in.nextDouble();
System.out.println("enter \"s\" for addition\t \"d\" for difference\t \"p\" for the product\t and \"q\" for the quotient");
char op = in.next().charAt(0);
if(op =='s'||op=='S'){
double sum = num1+num2;
System.out.println("The sum is "+sum);
}
else if(op =='d'||op=='D'){
double diff = num1-num2;
System.out.println("The difference is "+diff);
}
else if(op =='p'||op=='P'){
double prod = num1*num2;
System.out.println("The product is "+prod);
}
else if(op =='q'||op=='Q'){
double quo = num1/num2;
System.out.println("The Quotient is "+quo);
}
}
}
Explanation:
Use Scanner class to receive the two numbers and save in a two variablesCreate a new variable for Operation (op) to store a characterRequest the user to enter a character for the opearation (e.g s=sum, p=product, q=quotient and d=difference)Use if/else..if statements to implement the required operationTrue or False? When working at the keyboard, the user generates a newline character by pressing the Enter or Return key.
True, the newline character is generated by pressing the Enter or Return key and is used to signify the end of a line across various operating systems.
True, when working at the keyboard, the user generates a newline character by pressing the Enter or Return key. This action instructs the computer to move to the next line, and it's supported by the underlying ASCII character set which includes a 'carriage return' (CR) and a 'line feed' (LF) to represent the end of a line.
While different operating systems have their own conventions for line endings (Windows uses CRLF, Unix uses LF, and early Apple Mac used CR), the concept of the newline character is consistent across different platforms and is often represented by '\n' in text processing.
Write a loop that prints each country's population in country_pop. Sample output with input: 'China:1365830000,India:1247220000,United States:318463000,Indonesia:252164800': United States has 318463000 people. India has 1247220000 people.
Answer:
Hi there! This question is good to check your understanding of loops. To illustrate, I have implemented the answer in Python and explained it below.
Explanation:
Assuming user input for the country and population list as provided in the question, we can write the python script "country_pop.py" and run it from the command line. First we prompt user for the input, after which we split the country-population list which is separated or delimited with a comma into an array of country-population list. We then create a hash of country and its corresponding population by further splitting the country-population combo into a hash, and finally, printing the resultant hash as the output.
country_pop.py
def add_country_pop(country, population):
countrypop_hash[country]=population
countrypop_hash = {}
input_string = input("Enter country population list: ")
print(input_string)
countrypop_array = input_string.split(",")
for country in countrypop_array:
country_pop = country.split(':')
pop_country = country_pop[0]
population = country_pop[1]
add_country_pop(pop_country, population)
print(country + ' has ' + population + ' people')
Output
> country_pop.py
Enter country population list: China:1365830000,India:1247220000,United States:318463000,Indonesia:252164800
China:1365830000,India:1247220000,United States:318463000,Indonesia:252164800
China:1365830000 has 1365830000 people
India:1247220000 has 1247220000 people
United States:318463000 has 318463000 people
Indonesia:252164800 has 252164800 people
Answer:user_input = input()
entries = user_input.split(',')
country_pop = {}
for pair in entries:
split_pair = pair.split(':')
country_pop[split_pair[0]] = split_pair[1]
# country_pop is a dictionary, Ex: { 'Germany':'82790000', 'France':'67190000' }
for country,pop in country_pop.items():
print(f'{country} has {pop} people.')
Explanation:
Describe the difference between the typical states of your PC. Include shutdown, hibernation, standby, fully awake, etc.
Answer:
The answer is explained below:
Explanation:
There are various modes in a computer that can be used as per the need.
The three modes provided in a compute are Standby, sleep and Hibernate.
Hibernate: Hibernate mode saves all the open windows and then shuts down the computer. It also saves more energy because the computer goes off completely. A computer needs more time to wake up from hibernation mode.
Sleep mode: Sleep mode means different things on different computers and operating systems. In windows it means standby. It the computer has been sleeping for more than three hours then it hibernates automatically.
Standby: Standby mode is for saving energy, it puts your computer into energy saving mode.
Shutdown: If you shut down a computer then all the software programs are closed and the computer turns off. The last program to be closed is operating system.
Fully awake mode means that the computer is running normally.
2.29 LAB: Using math functions Given three floating-point numbers x, y, and z, output x to the power of z, x to the power of (y to the power of 2), the absolute value of y, and the square root of (xy to the power of z). Output each floating-point value with two digits after the decimal point, which can be achieved as follows: printf("%0.2of", your Value); Ex: If the input is: 5.0 6.5 3.2 the output is: 172.47 340002948455826440449068892160.00 6.50 262.43
The code is in C.
We use the built-in functions to make the required calculations. These functions are already defined in C. We need to import math.h to be able to use the pow(), fabs(), and sqrt() functions
Comments are used to explain each line of the code
//main.c
//importing the required libraries
#include <stdio.h>
#include <math.h>
#include <stdlib.h>
int main(){
//Declaring the variables x, y, z
float x, y, z;
//Getting inputs for x, y, z
scanf("%f", &x);
scanf("%f", &y);
scanf("%f", &z);
//Calculating the x to the power of z using the pow function
double result1 = pow(x, z);
//Calculating the x to the power of (y to the power of 2) using the pow function inside the another pow function
double result2 = pow(x, pow(y, 2));
//Calculating the absolute value of y using the fabs function
double result3 = fabs(y);
//Calculating the square root of (xy to the power of z) using the sqrt and pow functions
double result4 = sqrt(pow(x * y, z));
//Printing the results using prinntf("%0.2f") to get the two digits after decimal value
printf("%0.2f\n", result1);
printf("%0.2f\n", result2);
printf("%0.2f\n", result3);
printf("%0.2f\n", result4);
return 0;
}
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The code takes three floating-point numbers as input (x, y, and z), computes the required expressions using the `pow()` function for exponentiation and the `fabs()` function for absolute value, and then prints the results with two digits after the decimal point using `printf()` formatting.
Here's a C code snippet that implements the required functionality:
#include <stdio.h>
#include <math.h>
int main() {
double x, y, z;
scanf("%lf %lf %lf", &x, &y, &z);
double result1 = pow(x, z);
double result2 = pow(x, pow(y, 2));
double result3 = fabs(y);
double result4 = sqrt(pow(x * y, z));
printf("%0.2lf %0.2lf %0.2lf %0.2lf\n", result1, result2, result3, result4);
return 0;
}
________ is the gathering, organizing, sharing, and analyzing of the data and information to which a business has access.
Answer:
"knowledge management" is the answer for the above question.
Explanation:
Knowledge management is used to manage information. It is used to collect the data or information and analyze the information to extract the useful information.The useful information collected by this concept is used for the organization to take the decisions of the organizations.The above question asked about the concept which is used to gather the information and analyze the information for the business. This concept name is "Knowledge management".// GetData() method accepts order number and quantity // that are used in the Main() method // Price is $3.99 each using System; using static System.Console; class DebugEight1 { static void Main() { int orderNum, quantity; double total; const double PRICE_EACH = 3.99; GetData(orderNum; quantity); total = quantity * PRICEEACH; WriteLine("Order #{0}. Quantity ordered = {1}", orderNum, quantity; WriteLine("Total is {0}", total.ToString("C")); }
Answer:
The method definition to this question as follows:
Method definition:
//method GetData
public static void GetData(out int order, out int amount)//defining method GetData
{
String val1, val2; //defining String variable
Write("Enter order number "); //message
val1 = ReadLine(); //input value by user
Write("Enter quantity "); //message
val2 = ReadLine(); //input value by user
order = Convert.ToInt32(val1); //convert value in integer and hold in order variable
amount = Convert.ToInt32(val2); //convert value in integer and hold in amount variable
}
Explanation:
In the above C# method definition code a method GetData() is defined in which the GetData() method is a static method, in this method parameter two integer argument "order and amount" is passed, inside a method, two string variable "val1 and val2" is declared that is used to take input by the user and convert the value into integer and store this value in the function parameter variable.
Final answer:
The question concerns fixing errors in a C# code snippet, specifically with the GetData method call, constant declaration, and output formatting. After corrections, the code should work as intended, calculating the total price of an order.
Explanation:
The question pertains to an issue in a C# program where there are mistakes that need to be resolved to ensure the program runs correctly. Particularly, the errors are in the GetData method call and in the calculation of the total cost.
Firstly, the GetData method is meant to accept an order number and quantity which are not being assigned before the method is called. Secondly, there is an error in referring to the constant PRICE_EACH when calculating the total, as the variable in the calculation is misspelled as 'PRICEEACH'. In addition, the syntax errors like incorrect use of semicolons and missing closing parentheses in the WriteLine methods need to be corrected.
Here is the corrected version of the Main method:
static void Main()
{
int orderNum = 0, quantity = 0;
double total;
const double PRICE_EACH = 3.99;
// Assume GetData correctly assigns values to orderNum and quantity
GetData(orderNum, quantity);
total = quantity * PRICE_EACH;
WriteLine("Order #{0}. Quantity ordered = {1}", orderNum, quantity);
WriteLine("Total is {0}", total.ToString("C"));
}
Note that the pseudo-code for the GetData method implies there is additional logic required to populate the orderNum and quantity variables which is not provided.
Scripts for business processes: a. are unique b. are always followed exactly c. are often modified d. are invariant e. all have the same fixed number of events
Answer:
Scripts for businesses are always followed exactly.
Explanation:
A computer script is a list of commands that are executed by a certain program or scripting engine. Scripts may be used to automate processes on a local computer.
What are the differences between a trap (aka software interrupt) and an interrupt (hardware interrupt)? What is the use of each function
Answer:
Trap is a software interrupt that occurs when there is a system call, while hardware interrupt occurs when a hardware component needs urgent attention.
Explanation:
Interrupt is an input signal that disrupt the activities of a computer system, giving immediate attention to a hardware or software request.
In trap interrupt, the system activities are stop for a routine kernel mode operation, since it has a higher priority than the user mode. At the end of the interrupt, it switches control to the user mode.
The hardware interrupt is a signal from hardware devices like the input/output devices, storage and even peripheral devices that draws an immediate attention of the processor, stopping and saving other activities and executing the event with an interrupt handler.
In BitTorrent, if Alice provides chunks to Bob throughout a 30-second interval, Bob will return the favor and provide chunks to Alice in the same interval only if she is one of the top four neighbors to Bob during this interval.
True or False?
False, as it is not necessary for Bob to return the chunks to Alice in the same interval in Bit Torrent.
Explanation:
This can be done, if Alice is at the top neighbors list of Bob.Then Bob needs to send a message to Alice.This scenario can occur even if Alice not provide the chunks in the 30 second interval to BobHence, the answer for the given question might be False. As this is a case of may or may not happen.How long would it take to transfer a 600-MB database from disk to memory over a DMA channel with a bandwidth of 2.5 GB/s?
Answer:
0.24 seg
Explanation:
We have 600 MB of data if we convert it to Gb we get 0.6Gb of data, the bandwidth is telling us that we can transfer 2.5 Gb of data per second if we assume that the data transfer is lineal we can apply the rule of three to solve the problem:
2.5 Gb -> 1 seg
0.6 Gb -> X
Applying the cross multiplication we get that X = 0.6 Gb* 1 seg / 2.5 Gb = 0.24 seg
The time required to transfer a 600-MB database over a DMA channel with a bandwidth of 2.5 GB/s is 0.24 seconds.
Explanation:To calculate the transfer speed of a 600-MB database over a DMA channel with a bandwidth of 2.5 GB/s, you first need to convert the database size to the same unit as the bandwidth. In this case, 600 MB = 0.6 GB.
The time to transfer data over a channel is equivalent to the size of the data (in GB) divided by the bandwidth (in GB/s). Therefore, the time to transfer the 600-MB database would be 0.6 GB / 2.5 GB/s = 0.24 seconds.
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A palindrome is a word or phrase that reads the same both backward and forward. The word ""racecar"" is an example. Create an algorithm (sequence of steps) to determine if a word or phrase is a palindrome. Try several different words or phrases to ensure your algorithm can detect the existence of a palindrome properly.
Answer:
Algorithm for the above problem:
Take a string from the user input.store the input string on any variable.Reverse the string and store it on the other variable.Compare both strings (character by character) using any loop.If all the character of the string matched then print that the "Input string is a palindrome".Otherwise, print "The inputted string is not a palindrome."Output:
If the user inputs "ababa", then it prints that the "Input string is palindrome"If the user inputs "ababaff", then it prints that the "Input string is not palindrome"Explanation:
The above-defined line is a set of an algorithm to check the number is palindrome or not.It is defined in English because the algorithm is a finite set of instructions written in any language used to solve the problem. The above algorithm takes input from the user, compare that string with its reverse and print palindrome, if the match is found.What data discovery process, whereby objects are categorized into predetermined groups, is used in text mining?
Answer:
"Classification" is the correct answer to this question.
Explanation:
Classification is primarily a method of data processing, it makes easy for information to be separated and divided into a different business or personal goals by the data set demands.
It's also known as a mechanism of sorting or identifying information in different types of aspects or groups in the categorization of data. It is used to allocate the confidential information to the level of sensitivity.Are functional strategies interdependent, or can they be formulated independently of other functions?
Answer:
Functional strategies are interdependent
Explanation:
Although functional strategies are usually formed separately, they are somewhat interrelated as a result of some factors.
First, we know that despite the fact that functional strategies can be formed in isolation, they still have to be in coordination with other functions. An example is that if an organization formulates a financial strategy, its implementation depends on more than just the finance function, but also on other functions. Also, from definition, we say that functional strategies are plans formulated by companies for human resources, sales, marketing, finance, and other functional areas. It supports line management and also both business strategy and corporate-level strategy, and hence it can be said that they are interdependent.
Answer:
Functional strategies are interdependent based of organizational strategies.
Explanation:
An organization is a group or encompasses a collection of departments, focused on assigned Target and objectives for each departments, to meet or achieve a general goal. Functional strategies are processes chosen by a department to execute a task.
Functional strategies are actually drafted independently in which departments, but the departmental goals are interrelated, making the their functional strategies interdependent to meet the organizational goals.
In Java library, a color is specified by its red, green,and blue components between 0 and 255. write a program 'BrighterDemo ' that constructs a color object with red, green,and blue values of 50,100, and 150. Then apply the brighter methodand print the red, green, and blue values of the resultingcolor.
B) Repeat question (a), but apply the darker method twice tothe predefined object Color.RED. Call your class DarkerDemo.
Answer:
.
Explanation:
Sample Run 1 Enter your word: zebras Enter a number: 62 Password not long enough. Sample Run 2 Enter your word: newyorkcity Enter a number: 892 Password: N@wyorkci y892
Answer:
import random
paswrd = input("Enter Pass: ")
while len(paswrd) < 8:
print('Password not long enough.')
paswrd = input("Enter Pass: ")
paswrd = paswrd.replace('e', '@')
paswrd = paswrd.replace('E', '@')
paswrd = paswrd.replace('s', '$')
paswrd = paswrd.replace('S', '$')
paswrd = paswrd.replace('t', '+')
paswrd = paswrd.replace('T', '+')
paswrd = paswrd.capitalize()
paswrd = paswrd + (str(random.randint(1,999)))
print(paswrd)
Explanation:
Take the password as input from user.Replace the alphabets with relevant characters.Capitalize the password.Finally display the password.Given that ph refers to a float, write a statement that compares ph to 7.0 and makes the following assignments (RESPECTIVELY!) to the variables neutral, base, and acid:
0,0,1 if ph is less than 7
0,1,0 if ph is greater than 7
1,0,0 if ph is equal to 7
The pH scale measures how acidic or basic a substance is. Human blood (pH 7.4) is basic, household ammonia (pH 11.0) is also basic, and cherries (pH 3.6) are acidic.
Explanation:To compare the value of ph to 7.0, we can use an if-else statement in Python. We can assign the values to the variables neutral, base, and acid as follows:
If ph is less than 7, assign 0,0,1 to neutral, base, and acid respectively.If ph is greater than 7, assign 0,1,0 to neutral, base, and acid respectively.If ph is equal to 7, assign 1,0,0 to neutral, base, and acid respectively.What is a method whereby new problems are solved based on the solutions from similar cases solved in the past?
Answer:
"Case-Based Reasoning" is the answer for the above question.
Explanation:
Case-Based Reasoning is a process of decision-making theory in which the new problems were solved based on the previously solved problem.It is used in artificial intelligence and robots. This helps to make any AI and robots to do the work and take decisions on its own.The theory is used to make any computer that behaves like humans. It can take decisions like a human. The above question asked about the method by which the new problem is solved on behalf of the old problem. Hence the answer is "Case-Based Reasoning".Calculate the shear stress (lbf/in^2) for a given normal stress (lbf/in^2) that is applied to a material with a given cohesion (lbf/in^2) and angle of internal friction (degrees). (See MohrCoulomb failure criterion
MOHR-COULOMB FAILURE CRITERIA:
In 1900, MOHR-COULOMB states Theory of Rupture in Materials which defines as “A material fails due to because of a critical combination of normal and shear stress, not from maximum normal or shear stress”. Failure Envelope is approached by a linear relationship.
If you can not understand the below symbols see the attachment below
f f ()
Where: f = Shear Stress on Failure Plane
´= Normal Stress on Failure Plane
See the graph in the attachment
For calculating the shear stress, when Normal stress, cohesion and angle of internal friction are given. Use this formula: shear stress = f c tan
Where,
• f is Shear Stress on Failure Plane
• c is Cohesion
• is Normal Total Stress on Failure Plane
• is Friction Angle
An alternative to hexadecimal notation for representing bit patterns is dotted decimal notation in which each byte in the pattern is represented by its base ten equivalent. In turn, these byte representations are separated by periods. For example, 12.5 represents the pattern 0000110000000101 (the byte 00001100 is represented by 12, and 00000101 is represented by 5), and the pattern 100010000001000000000111 is represented by 136.16.7. Represent each of the following bit patterns in dotted decimal notation. 0000111100001111 001100110000000010000000 0000101010100000
Answer:
Represent each of the following bit patterns in decimal notation.
Process for conversion:
1. Divide the bit pattern into equal parts.
2. Every digit represent by base 2 with different powers from 0 to 7.
3. Then match the binary number to respective digits of base 2.
4. Neglect numbers that represent by 0 and add numbers that represent by 1.
5. Then place dot between results obtained from different parts.
Part 1: Answer = 15.15
Part 2: Answer=51.0.128
Part 3: Answer=10.160
See attachment for each part
Write a program that gets a single character from the user. If the character is not a capital letter (between 'A' and 'Z'), then the program does nothing. Otherwise, the program will print a triangle of characters that looks like this:
This question is incomplete. The complete question is given below:
Write a program that gets a single character from the user. If the character is not a capital letter (between 'A' and 'Z'), then the program does nothing. Otherwise, the program will print a triangle of characters that looks like this:
A
ABA
ABCBA
ABCDCBA
Answer:
#include <stdio.h>
void printTri(char asciiCharacter){
// Row printer
// for(int i = 65; i <= ((int)asciiCharacter); i++){
int i = 65;
while(i <= ((int)asciiCharacter)){
int leftMargin = ((int)asciiCharacter) - i; +
int j = 1;
while(j <= leftMargin){
printf(" ");
j++;
}
int k = 65;
while(k < ((int)i)){
printf("%c",(char)k);
k++;
}
int l = ((int)i);
while(l >= 65){
printf("%c",(char)l);
l--;
}
printf("\n");
i++;
}
}
int main()
{
for(;;){
printf("Please enter a character between A and Z. Enter (!) to exit \n");
char in;
// scanf("%c",&in);
in = getchar();
getchar();
printf("Printing Triangle for: %c \n",in);
if(((int)in) >= 65 && ((int)in) <= 90){
printTri(in);
printf("\n");
}else if(((int)in) == 33){
break;
} else {
continue;
}
}
return 0;
}
Explanation:
Inside the printTri function, print spaces, characters in order as well as characters in reverse order.Inside the main function, take the character as an input from user then print the triangle by validating first to ensure that the character lies between a to z alphabets.Write an expression that will cause the following code to print "Equal" if the value of sensorReading is "close enough" to targetValue. Otherwise, print "Not equal".
Full Question
Write an expression that will cause the following code to print "Equal" if the value of sensorReading is "close enough" to targetValue. Otherwise, print "Not equal". Ex: If targetValue is 0.3333 and sensorReading is (1.0/3.0), output is: Equal
#include <iostream>
#include <cmath>
using namespace std;
int main() {
double targetValue;
double sensorReading;
cin >> targetValue;
cin >> sensorReading;
if (/* Your solution goes here */) {
cout << "Equal" << endl;
} else {
cout << "Not equal" << endl;
} return 0;
}
Answer:
if (abs(targetValue - sensorReading) <= 0.0001)
Explanation:
Replace
if (/* Your solution goes here */) {
With
if (abs(targetValue - sensorReading) <= 0.0001)
Two values are considered to be close enough if the difference between the values is 0.0001
Splitting the codes into bits;
abs
targetValue - sensorReading
<=
0.0001
The keyword abs is to return the absolute value of the expression in bracket.
This is needed because the expression in the bracket is expected to return a positive value.
To do this the absolute keyword is required.
targetValue - sensorReading returns the difference between the variables
<= compares if the difference falls within range that should be considered to be close enough
0.0001 is the expected range
What are the design concepts and assumptions behind a class, an object and the relationship between them? What are the roles methods and static fields play in OOP?
Answer:
Object-oriented programming (OOP) is a procedural language and based on classes associated with an object. Without classes and object relationship OOP is not possible. According to program's design concept classes provide abstraction and encapsulation with the help of object. Object have states and behaviors like cat has states like name, color and cat has also behaviors like wagging the tail, eating, jumping etc. A class forms template or blueprints for these states and behaviors because different cats have different behaviors and states.
Methods provide a way for encapsulation and accessing private class members with public methods and static fields are sometimes best alternative for global variable. We can use static field when it same for all and shared by all objects of that class and it can save memory because we do not have to initialize it for each object
Final answer:
In Object-Oriented Programming (OOP), a class is a blueprint for creating objects, while an object is an instance of a class. The relationship between a class and an object is that a class defines the structure of an object. Methods in OOP are used to perform actions or computations, while static fields are shared among all objects of a class.
Explanation:
Design Concepts and Assumptions in OOP:
In Object-Oriented Programming (OOP), a class is a blueprint for creating objects, while an object is an instance of a class. The design concept behind a class is to define the common characteristics and behaviors that objects of that class will have. Assumptions made when designing a class include creating a hierarchy of classes to represent different levels of abstraction and encapsulating data and behaviors within the class.
Relationship between Class and Object:
In OOP, the relationship between a class and an object is that a class defines the structure (attributes and behaviors) of an object, while an object is an instance of a class that can be created and manipulated using the defined structure.
Roles of Methods and Static Fields in OOP:
In OOP, methods are functions or behaviors associated with an object or class, which are used to perform certain actions or computations. They define how objects or classes interact with each other and with the outside world. Static fields, on the other hand, are variables or data that are shared among all objects of a class. They hold values that are common to all instances of the class and can be accessed without creating an object.
2.32 LAB: Input and formatted output: House real estate summary Sites like Zillow get input about house prices from a database and provide nice summaries for readers. Write a program with two inputs, current price and last month's price (both integers). Then, output a summary listing the price, the change since last month, and the estimated monthly mortgage computed as (currentPrice * 0.051) / 12 (Note: Output directly as a floating-point value. Do not store in a variable.). Ex: If the input is: 200000 210000 the output is: This house is $200000. The change is $-10000 since last month. The estimated monthly mortgage is $850.000000. Note: Getting the precise spacing, punctuation, and newlines exactly right is a key point of this assignment. Such precision is an important part of programming.
Final answer:
To solve the student's problem, input the current and last month's house prices, calculate the price change, compute the estimated mortgage, and correctly format the output presenting the figures.
Explanation:
To create a program that takes the current price and last month's price of a house as inputs, and outputs a summary of the price change and estimated monthly mortgage, follow these instructions:
First, prompt the user to input both the current price and the last month's price of the house.Calculate the difference between the current price and the last month's price.Compute the estimated monthly mortgage using the formula ((currentPrice * 0.051) / 12).Finally, format the output to include the current price, the price change, and the mortgage estimate. Ensure that spaces, punctuation, and newlines match the example precisely.Here's how the output should look like:
This house is $200000. The change is $-10000 since last month. The estimated monthly mortgage is $850.000000.
```python
current_price, last_month_price = map(int, input().split())
print(f'This house is ${current_price}. The change is ${last_month_price - current_price} since last month. The estimated monthly mortgage is ${(current_price * 0.051) / 12:.6f}.')
```
Explanation:The program takes two integer inputs, representing the current house price and last month's price. It then uses a formatted string to output a summary, including the current price, the change since last month (calculated by subtracting the current price from last month's price), and the estimated monthly mortgage computed using the given formula. The use of f-strings in Python allows for concise and readable code, embedding expressions directly within the string.
The map function is employed to convert the input values into integers. The program calculates the change in price by subtracting the current price from last month's price. To ensure precise spacing and formatting, the f-string includes the required text and variable values in a structured manner. The estimated monthly mortgage is calculated using the provided formula and formatted as a floating-point value with six decimal places.
The code adheres to the assignment's emphasis on precision in spacing, punctuation, and newlines. By using f-strings and the specified formula, the program produces the required output with clarity and accuracy.
Create a new program called Time.java. From now on, we won’t remind you to start with a small, working program, but you should. 2. Following the example program in Section 2.4, create variables named hour, minute, and second. Assign values that are roughly the current time. Use a 24-hour clock so that at 2pm the value of hour is 14. 3. Make the program calculate and display the number of seconds since midnight. 4. Calculate and display the number of seconds remaining in the day. 5. Calculate and display the percentage of the day that has passed. You might run into problems when computing percentages with integers, so consider using floating-point. 6. Change the values of hour, minute, and second to reflect the current time. Then write code to compute the elapsed time since you started
Answer:
Explanation:
public class time {
public static void main (String[]args) {
//Step 1 we declare the variables
int hours, minutes, seconds;
hours = 17;
minutes = 12;
seconds = 00;
//For checking
System.out.println(hours+":"+minutes+":"+seconds);
//Step 2 we make the operation for the seconds since midnight
int secSinceMidNite;
secSinceMidNite = ((hours*60)+minutes)*60 + seconds;
System.out.println("Seconds since midnight = "+secSinceMidNite);
//Step 3 we make the operation for the seconds remaining in day
int secRemainingInDay, totalSecInDay;
totalSecInDay = 24*60*60;
secRemainingInDay = totalSecInDay - secSinceMidNite;
System.out.println("Seconds remaining in day = "+secRemainingInDay);
//Step 4 in the operation for percentage of day that has passed
int percentOfDayPassed;
percentOfDayPassed = (secSinceMidNite*100)/totalSecInDay;
System.out.println("Percentage of day that has passed = " +percentOfDayPassed+"%");
}
}
Given 3 floating-point numbers. Use a string formatting expression with conversion specifiers to output their average and their product as integers (rounded), then as floating-point numbers. Output each floating-point value with two digits after the decimal point, which can be achieved as follows:
print('%0.2f $ your_value)
Ex: If the input is:
10.3
20.4
5.0
the output is:
11 1050
11.90 1050.60
To output the average and product of three floating-point numbers as rounded integers as well as floating-point numbers with two decimal points, we can use the Python string formatting expression. Given the inputs 10.3, 20.4, and 5.0, the average is rounded to 11 and the product is rounded to 1050 as integers. As floating-point numbers, formatted with two decimal places, the average is 11.90 and the product is 1050.60.
The average calculation is (10.3 + 20.4 + 5.0) / 3, which equals 11.9 when not rounded. For the integer part, we round 11.9 to 11. The product is 10.3 * 20.4 * 5.0, which equals 1052.6, rounded to 1050 as an integer. To format these as floating-point numbers using Python string formatting: '%0.2f' % 11.9 for the average and '%0.2f' % 1052.6 for the product, yielding 11.90 and 1050.60, respectively.