Question

in java

Write a while loop to ask the user to type number of hours(double) they work per day. Calculate and print the salary for each valid input.

If number of hours is greater than or equal to 0 and less than 5, then:  salary = numberofhours * 5, loop continues, the user can type another number

If number of hours is greater or equal to 5, and less than 10, then: salary = numberofours * 8, loop continues, the user can type another number

If number of hours is greater or equal to 10, and less than 24, then salary = numberofours * 10, loop continues, the user can type another number

If number of hours is negative or (greater or equal to)24, then the loop stops, message "Quit with invalid input" will be printed.

We assume that the user will type numbers only.

Answer 1

Java code:

import java.util.Scanner;
public class Main
{
   public static void main(String[] args){
       Scanner input=new Scanner(System.in);
       //initializing number of hours
       double hours;
       //asking for number of hours
       System.out.print("Enter number of hours: ");
       //accepting number of hours
       hours=input.nextInt();
       //looping till user enter invalid value
       while(true){
            //checking if the number of hours is greater than or equal to 0 and less than 5
            if(hours>=0 && hours<5){
                //printing Salary
                System.out.println("Salary="+(hours*5));
                //asking for number of hours
                System.out.print("Enter number of hours: ");
                //accepting number of hours
                hours=input.nextInt();
            }
            //checking if the number of hours is greater than or equal to 5 and less than 10
            else if(hours>=5 && hours<10){
                //printing Salary
                System.out.println("Salary="+(hours*8));
                //asking for number of hours
                System.out.print("Enter number of hours: ");
                //accepting number of hours
                hours=input.nextInt();
            }
            //checking if the number of hours is greater than or equal to 10 and less than 24
            else if(hours>=10 && hours<24){
                //printing Salary
                System.out.println("Salary="+(hours*10));
                //asking for number of hours
                System.out.print("Enter number of hours: ");
                //accepting number of hours
                hours=input.nextInt();
            }
            //checking for invalid value
            else if(hours<0 || hours>=24){
                //printing invalid input
                System.out.print("Quit with invalid input");
                //exiting loop
                break;
            }
       }
   }
}

Screenshot:

Input and Output: