Question

Java program

Use Do-while

Write a do-wile loop that asks the user to enter two numbers. The numbers should be added and the sum displayed. The loop should ask the user whether he or she wishes to perform the operation again. If so, the loop should repeat, otherwise, it should terminate.

Use Continue branching statement

Write a program that reads an integer and display all the positive ODD numbers from 0 to n (integer entered by the user). Use CONTINUE branching statement to skip the display of EVEN in the result.

Answer 1

Dear Student ,

As per the requirement submitted above , kindly find the below solution.

Question 1 :Do While Loop

Here a new java program with name "DoWhileNumbers.java" is created, which contains following code.

DoWhileNumbers.java :

import java.util.*;//import package
//Java class
public class DoWhileNumbers {
//entry point of program , main() method
   public static void main(String[] args) {
       // creating object of Scanner class
       Scanner sc=new Scanner(System.in);
       //using do while loop asking user to enter numbers
       do
       {
           //asking user to enter number 1
           System.out.print("Enter Number 1: ");
           int num1=sc.nextInt();//reading number1
           //asking user to enter number 2
           System.out.print("Enter Number 2: ");
           int num2=sc.nextInt();//reading number2
           //print result
           System.out.println("Sum of "+num1+" and "+num2+" is : "+(num1+num2));
           //asking user whether want to perform operation again
           System.out.print("Want to sum another numbers : ");
           String response=sc.next();//reading response
           //checking response
           if(response.equals("Yes"))
           {
               continue;
           }
           else
           {
               break;
           }
                      
       }while(true);

   }

}

======================================================

Output : Compile and Run DoWhileNumbers.java in the browser and will get the screen as shown below

Screen 1 :DoWhileNumbers.java

**************************************

Question 2:

OddNumbers.java :

import java.util.*;//import package
//Java class
public class OddNumbers {
   //entry point of program , main() method
   public static void main(String[] args) {
       // creating object of Scanner class
       Scanner sc=new Scanner(System.in);
       //asking user to enter number
       System.out.print("Enter Number : ");
       int num=sc.nextInt();//reading number
       if(num >0)
       {
       //using for loop checking numbers
       for(int i=1;i<=num;i++)
       {
           //checking odd numbers
           if(i%2!=0)
           {
               //display odd number
               System.out.print(i+" ");
           }
           else
           {
               continue;//continue the loop
           }
       }
       }
       else
       {
           //when negative number is entered
           System.out.print("Enter number greater than 0 ");
       }

   }

}
============================

Screen 1 :Screen when number less than 0 is entered

Screen 2 :Screen showing positive odd numbers

NOTE : PLEASE FEEL FREE TO PROVIDE FEEDBACK ABOUT THE SOLUTION.