Java System identityHashCode() Method

The identityHashCode() method of Java System class returns hash code for the specified object. It is returned by the default method hashCode().

Syntax

Parameter

x - object for which the hashCode is to be calculated

Returns

Returns the hash code.
Returns zero as reference if hash code is null.

Example 1

public class SystemIdentityHashCodeExample1{
	public static void main(String[] args) {
		int a=10;
		 System.out.println("identity hash code of object a = "+System.identityHashCode(a));
		 int b=10;
		 System.out.println("identity hash code of object b = "+System.identityHashCode(b));
		 int c=01;
		 System.out.println("identity hash code of object c = "+System.identityHashCode(c));
	}
}

Test it Now

Output:

identity hash code of object a = 743673026
identity hash code of object b = 743673026
identity hash code of object c = 557722442

Example 2

public class SystemIdentityHashCodeExample2{
	public static void main(String[] args) {
		String a=new String ();
		a.equals("Shubham");
		 System.out.println("identity hash code of object a = "+System.identityHashCode(a));
		 String b=new String ();
			b.equals("Jadon");
			 System.out.println("identity hash code of object b = "+System.identityHashCode(b));	
	}
}

Test it Now

Output:

identity hash code of object a = 843730481
identity hash code of object b = 743673026

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Java System Class