Question

Compile and Execute a Program

1. Compile Pay.java using the JDK or a Java IDE as directed by your instructor.
2. You should not receive any error messages.
3. When this program is executed, it will ask the user for input. You should calculate several different cases by hand. Since there is a critical point at which the calculation changes, you should test three different cases: the critical point, a number above the critical point, and a number below the critical point. You want to calculate by hand so that you can check the logic of the program. Fill in the chart below with your test cases and the result you get when calculating by hand.
4. Execute the program using your first set of data.
Record your result. You will need to execute the program three times to test all your data. Note: you do not need to compile again. Once the program compiles correctly once, it can be executed many times. You only need to compile again if you make changes to the code. Hours Rate Pay (hand calculated) Pay (program result) LLLLLLLLLL import java.util.Scanner; // Needed for the Scanner class This program calculates the user's gross pay. public class Pay public static void main(String[] args) // Create a Scanner object to read from the keyboard. Scanner keyboard = new Scanner(System.in); // Identifier declarations double hours; // Number of hours worked double rate; // Hourly pay rate double pay; // Gross pay // Display prompts and get input. System.out.print("How many hours did you work? "); hours = keyboard.nextDouble(); System.out.print("How much are you paid per hour? "); rate - keyboard.nextDouble(); // Perform the calculations. if (hours <- 40) pay - hours * rate; else pay - (hours - 40) - (1.5 * rate) + 40 - rate; // Display results. System.out.println("You earned $" + pay);

Answer 1

import java.util.Scanner;

// Needed for the Scanner class This program calculates the user's gross pay.

public class Pay {

public static void main(String[] args) {

// Create a Scanner object to read from the keyboard.

Scanner keyboard = new Scanner(System.in);

// Identifier declarations

double hours;

// Number of hours worked

double rate;

// Hourly pay rate

double pay;

// Gross pay

// Display prompts and get input.

System.out.print("How many hours did you work? ");

hours = keyboard.nextDouble();

System.out.print("How much are you paid per hour? ");

rate = keyboard.nextDouble();

// Perform the calculations.

if (hours <= 40) {

pay = hours * rate;

}

else

{

pay = (hours - 40) - (1.5 * rate) + 40 - rate;

}

// Display results.

System.out.println("You earned $" + pay);

}

}

Step-by-step explanation: