Java Tutorials 30 - Do-While Loop

This video covers the purpose and use of do-while loop.

Assignment:
https://www.youtube.com/watch?v=jvrmwiWdY3Y&feature=youtu.be

Watch video on loops :
https://www.youtube.com/watch?v=6daR0...

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Code for above video :-
import java .util.*;
public class DoWhileDemo
{
public static void main()
{
/**
* Display menu to user and ask their choice :
* 1. Add 2 nos
* 2. Entered no even or odd
* 3. Find if triangle can be formed when 3 sides of triangle taken as input
* Continue the above operations till user enters NO.
*/
Scanner sc = new Scanner(System.in);
char ch = 'N';
do{
System.out.println("Enter your choice\n1. Add 2 nos \n2. Find even or odd \n3. Find if triangle can be formed or not\n");
int choice = sc.nextInt();
switch(choice)
{
case 1 : System.out.println("Enter 2 nos");
int n1 = sc.nextInt();
int n2 = sc.nextInt();
System.out.println("Addition of "+n1+" + "+n2+" = "+ (n1+n2));
break;
case 2:System.out.println("Enter 1 no");
int n3 = sc.nextInt();
if(n3%2==0)
System.out.println(n3+" is even ");
else
System.out.println(n3+" is odd ");
break;
case 3 : System.out.println("Enter 3 sides");
int s1 = sc.nextInt();
int s2 = sc.nextInt();
int s3 = sc.nextInt();
if(s1+s2 ﹥ s3 && s2+s3 ﹥ s1 && s1+s3 ﹥ s2)
System.out.println("triangle can be formed ");
else
System.out.println("triangle cannot be formed ");

}
System.out.println("Do you want to continue");
ch = sc.next().charAt(0);
}while(ch=='Y');
}
}