Java Long - compareTo() Method

The java.lang.Long.compareTo() method is used to compare two Long objects numerically.

Syntax

public int compareTo(Long anotherLong)

Parameters

Return Value

Returns the value 0 if this Long is equal to the argument Long; a value less than 0 if this Long is numerically less than the argument Long; and a value greater than 0 if this Long is numerically greater than the argument Long (signed comparison).

Exception

NA.

Example:

In the example below, the java.lang.Long.compareTo() method is used to compare given Long objects.

import java.lang.*;

public class MyClass {
  public static void main(String[] args) {
    
    //creating Long objects
    Long val1 = 5l;
    Long val2 = 5l;
    Long val3 = -5l;

    //comparing Long objects 
    System.out.println("comparing val1 with val2: " + val1.compareTo(val2)); 
    System.out.println("comparing val1 with val3: " + val1.compareTo(val3)); 
    System.out.println("comparing val3 with val1: " + val3.compareTo(val1));    
  }
}

The output of the above code will be:

comparing val1 with val2: 0
comparing val1 with val3: 1
comparing val3 with val1: -1