CONTROL STRUCTURES I: SELECTION - Java Programming: From Problem Analysis to Program Design - page 195

EXAMPLE 4-12

The following program determines an employee's weekly wages. If the hours worked
exceed 40 , then wages include overtime payment.

//Weekly Wages

import java.util.*;

public class WeeklyWages
{

4

static Scanner console = new Scanner(System.in);

public static void main(String[] args)
{

double wages, rate, hours; //Line 1

System.out.print("Line 2: Enter the working "
+ "hours: ");

//Line 2

hours = console.nextDouble(); //Line 3

System.out.println(); //Line 4

System.out.print("Line 5: Enter the pay "
+ "rate: "); //Line 5

rate = console.nextDouble(); //Line 6

System.out.println(); //Line 7

if (hours > 40.0) //Line 8

wages = 40.0 * rate +
1.5 * rate * (hours - 40.0); //Line 9

else //Line 10

wages = hours * rate; //Line 11

System.out.printf("Line 12: The wages are $%.2f %n",
wages); //Line 12

System.out.println(); //Line 13

}

}

Sample Run: (In this sample run, the user input is shaded.)

Line 2: Enter working hours: 60

Line 5: Enter pay rate: 10

Line 12: The wages are $700
The statement in Line 1 declares the appropriate variables. The statement in Line 2
prompts the user to input the number of hours worked. The statement in Line 3 inputs
and stores the working hours in the variable hours . The statement in Line 5 prompts
the user to input the pay rate. The statement in Line 6 inputs and stores the pay rate