Java Class isInstance() Method

The isInstance() method of java Class class checks if the specified object can be assigned to object represented by that class, i.e., if both the objects are an instance of the same class or not.

Syntax

Parameter

obj - the object to check

Returns

true if obj is an instance of this class.

Throws

Example 1

public class ClassisInstanceExample1 {
    public static void main(String... args) {
        Object obj = new Thread();
        boolean bl = Runnable.class.isInstance(obj);
        System.out.println(bl);
        bl = Thread.class.isInstance(obj);
        System.out.println(bl);
    }
}

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Output:

true
true

Example 2

import java.lang.*;

public class ClassisInstanceExample2 {
   public static void main(String[] args) {
      Class cls1 = Long.class;
      Long lng = new Long(998765);
      boolean val = cls1.isInstance(lng);
      System.out.println(lng + " is Long ? " + val);
   }
}

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Output: