Home » Java programming language

Java Class class getEnclosingClass() method with example

Class class getEnclosingClass() method: Here, we are going to learn about the getEnclosingClass() method of Class class with its syntax and example.
Submitted by Preeti Jain, on November 04, 2019

Class class getEnclosingClass() method

• getEnclosingClass() method is available in java.lang package.
• getEnclosingClass() method is used to return recent or immediately enclosing class of the underlying class.
• getEnclosingClass() method is a non-static method, it is accessible with the class object only and if we try to access the method with the class name then we will get an error.
• getEnclosingClass() method does not throw an exception at the time of returning Class object.

Syntax:

    public Class getEnclosingClass();

Parameter(s):

• It does not accept any parameter.

Return value:

The return type of this method is Class, it returns recently enclosing class of the underlying class.

Note:

• When this class has no top class, null is returned.

Example:

// Java program to demonstrate the example 
// of Class getEnclosingClass () method of Class 

import java.lang.reflect.*;

public class GetEnclosingClassOfClass {
    public GetEnclosingClassOfClass() {
        // OuterClass is inside in GetEnclosingClassOfClass class 
        // that means OuterClass is inner class of 
        // GetEnclosingClassOfClass
        class OuterClass {
            public void outerMethod() {
                // InnerClass is inside in OuterClass class that means
                // InnerClass is inner class of OuterClass

                class InnerClass {
                    public void innerMethod() {
                        System.out.println(getClass().getEnclosingClass());
                    }
                }

                System.out.println(getClass().getEnclosingClass());
                // Creating an instance of InnerClass
                InnerClass ic = new InnerClass();
                ic.innerMethod();
            }
        }

        // Creating an instance of OuterClass
        OuterClass oc = new OuterClass();
        oc.outerMethod();
    }

    public static void main(String[] args) {
        GetEnclosingClassOfClass enclo_class = new GetEnclosingClassOfClass();
    }
}

Output

class GetEnclosingClassOfClass
class GetEnclosingClassOfClass$1OuterClass