Comparing int Values - Java Language Basics

Java examples for Language Basics:int

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Solution 1

Use the comparison operators to compare integer values. 

int int1 = 1; 
int int2 = 10; 
int int3 = -5; 

System.out.println(int1 == int2);  // Result:  false 
System.out.println(int3 == int1);  // Result:  false 
System.out.println(int1 == int1);  // Result:  true 
System.out.println(int1 > int3);   // Result:  true 
System.out.println(int2 < int3);   // Result:  false

The Java language has the following comparison operators.

Operator Function
==Equal to
!= Not equal to
> Greater than
< Less than
>=Greater than or equal to
<=Less than or equal to

Solution 2

Use the Integer.compare(int,int) method to compare two int values. 

System.out.println("Compare method -> int3 and int1: " + Integer.compare(int3, int1)); 
// Result -1 
System.out.println("Compare method -> int2 and int1: " + Integer.compare(int2, int1)); 
// Result 1

This static method accepts two int values and compares them, returning

  • 1 if the first int is greater than the second,
  • 0 if the two int values are equal,
  • -1 if the first int value is less than the second.

Demo Code

public class Main {
    //from   w ww. j  a  va 2 s. c o m
    public static void main(String[] args){

        int int1 = 1;
        int int2 = 10;
        int int3 = -5;

        System.out.println(int1 == int2);

        System.out.println(int3 == int1);

        System.out.println(int1 == int1);

        System.out.println(int1 > int3);

        System.out.println(int2 < int3);
        
        System.out.println("Compare method -> int3 and int1: " + Integer.compare(int3, int1));

        System.out.println("Compare method -> int2 and int1: " + Integer.compare(int2, int1));
    }
    
}

Result


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