Java Program To Perform Relational Operations

Relational operation means greater than, less than, greater than equal to, less than equal to, not equal to, equal to.

Three ways to perform relational operations:

• Without user input
• With user input at runtime
• With user input at command line

Perform relational operations without user input:

It means at the time of declaration of variable , value is assign on a and b variable. ‘a’ is an one variable and ‘b’ is another variable. ‘math’ is a class name.

class math
 {
  public static void main(String args[])
   {
    int a=15, b=12;  
    System.out.println("a greater than  b  is :"+(a>b));
    System.out.println("a less than b is :"+(a<b));
    system.out.println("a greater than equal to b  is :"+(a>=b));
    System.out.println("a less than equal to b  is :"+(a<=b));
    System.out.println("a not equal to b is :"+(a!=b)); 
    System.out.println("a equal to b is :"+(a==b));
   } 
 }

Output:

a greater than b is : true
a less than b is : false
a greater than equal to b is : true
a less than equal to b is : false
a not equal to b is : true
a equal to b is : false

Perform relational operations with user input at run time:

It means at the execution time the value is assign on a and b variable. This program use scanner class then import util package.

import java.util.*;
class math
 {
  public static void main(String args[])
   {
    int a,b;
    Scanner sc= new Scanner(System.in);
    System.out.print("Enter two no a and b is : ");
    a=sc.nextInt();
    b=sc.nextInt();
    System.out.println("a greater than  b  is :"+(a>b));
    System.out.println("a less than b is :"+(a<b));
    system.out.println("a greater than equal to b  is :"+(a>=b));
    System.out.println("a less than equal to b  is :"+(a<=b));
    System.out.println("a not equal to b is :"+(a!=b)); 
    System.out.println("a equal to b is :"+(a==b)); 
   } 
 }

Output:

Enter two no a and b is : 50 40
a greater than b is : true
a less than b is : false
a greater than equal to b is : true
a less than equal to b is : false
a not equal to b is : true
a equal to b is : false

Perform relational operations with user input at command line :

It means the value is assign on a and b variable at the command line.

class math
 {
  public static void main(String args[])
   {
    int a,b;
    a=Integer.parseInt(args[0]);
    b=Integer.parseInt(args[1]);
    System.out.println("a greater than  b  is :"+(a>b));
    System.out.println("a less than b is :"+(a<b));
    system.out.println("a greater than equal to b  is :"+(a>=b));
    System.out.println("a less than equal to b  is :"+(a<=b));
    System.out.println("a not equal to b is :"+(a!=b)); 
    System.out.println("a equal to b is :"+(a==b));
   } 
 }

Output:

C:\>java math 75 90
a greater than b is : false
a less than b is : true
a greater than equal to b is : false
a less than equal to b is : true
a not equal to b is : true
a equal to b is : false