Java - Long Class hashCode() Method

Long class hashCode() method: Here, we are going to learn about the hashCode() method of Long class with its syntax and example. By Preeti Jain Last updated : March 20, 2024

Long class hashCode() method

hashCode() method is available in java.lang package.
hashCode() method is used to return hashcode of the Long object.
hashCode() method is a non-static method, it is accessible with the class object only and if we try to access the method with the class name then we will get an error.
hashCode() method does not throw an exception at the time of returning hash code.

Syntax

public int hashCode();

Parameters

It does not accept any parameter.

Return Value

The return type of this method is int, it returns hashcode for this object.

Example

// Java program to demonstrate the example 
// of hashCode() method of Long class

public class HashCodeOfLongClass {
    public static void main(String[] args) {
        // Variables initialization
        long value1 = 30;
        long value2 = 10;

        // It returns hashcode value denoted by this Long ob1 object
        // by calling ob1.hashCode()
        Long ob1 = new Long(value1);

        // Display ob1 result
        System.out.println("ob1.hashCode(): " + ob1.hashCode());

        // It returns hashcode value denoted by this Long ob2 object
        // by calling ob2.hashCode()
        Long ob2 = new Long(value2);

        // Display ob2 result
        System.out.println("ob2.hashCode(): " + ob2.hashCode());
    }
}

Output

ob1.hashCode(): 30
ob2.hashCode(): 10

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