Question

I have the following variables

MyObj myObj = new MyObj();
String myString = "myPackage.MyObj";

where MyObj look like this

package myPackage;

class MyObj {
    private String one;
    private String two;
}

How can I check if myObj is an instance of the full qualified class name as represented by the string myString?

Answer 1

You can use Class#isInstance() for this.

if (Class.forName(myString).isInstance(myObj)) {
   // myObj is an instance of the class as specified by myString.
}