Skip to content
Related Articles

Related Articles

Improve Article
Class hashCode() method in Java with Examples
  • Last Updated : 27 Dec, 2019

The hashCode() method of java.lang.Class class is used to get the hashCode representation of this entity. This method returns an integer value which is the hashCode.

Syntax:

public int hashCode()

Parameter: This method does not accept any parameter.

Return Value: This method returns an integer value which is the hashCode.

Below programs demonstrate the hashCode() method.



Example 1:




// Java program to demonstrate hashCode() method
  
public class Test {
    public static void main(String[] args)
        throws ClassNotFoundException
    {
        // returns the Class object for the class
        // with the specified name
        Class c1 = Class.forName("java.lang.String");
  
        System.out.println("Class represented by c1: "
                         + c1);
  
        // hashCode method on c1
        System.out.println("HashCode value: "
                           + c1.hashCode());
    }
}
Output:
Class represented by c1: class java.lang.String
HashCode value: 589431969

Example 2:




// Java program to demonstrate hashCode() method
  
public class Test {
    public static void main(String[] args)
        throws ClassNotFoundException
    {
        // returns the Class object for the class
        // with the specified name
        Class c1 = int.class;
  
        System.out.println("Class represented by c1: "
                         + c1);
  
        // hashCode method on c1
        System.out.println("HashCode value: "
                           + c1.hashCode());
    }
}
Output:
Class represented by c1: int
HashCode value: 589431969

Reference: https://docs.oracle.com/javase/9/docs/api/java/lang/Class.html#hashCode–

Attention reader! Don’t stop learning now. Get hold of all the important Java Foundation and Collections concepts with the Fundamentals of Java and Java Collections Course at a student-friendly price and become industry ready. To complete your preparation from learning a language to DS Algo and many more,  please refer Complete Interview Preparation Course.




My Personal Notes arrow_drop_up
Recommended Articles
Page :