Java Class.isInstance(Object obj)
Syntax
Class.isInstance(Object obj) has the following syntax.
public boolean isInstance(Object obj)
Example
In the following code shows how to use Class.isInstance(Object obj) method.
public class Main {
/*from w ww . ja va2 s . c om*/
public static void main(String[] args) {
Class cls = Long.class;
Long l = new Long(8);
Double d = new Double(3.5);
// checking for Long instance
boolean retval = cls.isInstance(l);
System.out.println(l + " is Long ? " + retval);
// checking for Long instance
retval = cls.isInstance(d);
System.out.println(d + " is Long ? " + retval);
}
}
The code above generates the following result.
