While, Do while and For

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👉 Java

 1. Displaying Odd numbers using while loop-

import java.util.Scanner;

public class Test

 {

public static void main(String args[]) 

  {

int odd,i=1;

Scanner s1 = new Scanner(System.in);  

System.out.println("Enter the number");

odd = s1.nextInt();

while(i<=odd) 

{

System.out.println(i); 

i=i+2;

}

  }

 } 

2. Displaying Even numbers using while loop-

import java.util.Scanner;

public class Test

 {

public static void main(String args[]) 

  {

int even,i=0;

Scanner s1 = new Scanner(System.in);  

System.out.println("Enter the number");

odd = s1.nextInt();

while(i<=odd) 

{

System.out.println(i); 

i=i+2;

}

  }

 } 

2. Displaying the Sum using while loop-

import java.util.Scanner;

public class Test

 {

public static void main(String args[]) 

  {

int i,sum=0,til;

Scanner s1 = new Scanner(System.in);  

System.out.println("Enter the number");

 = s1.nextInt();

for(i=1;i<=til;i++) 

{

sum=sum+i;

} 

System.out.println(sum); 

  }

 }