Class getEnclosingClass() method in Java with Examples

The getEnclosingClass() method of java.lang.Class class is used to get the enclosing class of this class. The method returns the enclosing class of this class, if this class is a local class or anonymous class declared in that class. Else this method returns null.

Syntax:

public Class getEnclosingClass() throws SecurityException

Parameter: This method does not accept any paramter.

Return Value: This method returns the enclosing class of this class if this class is a local class or anonymous class declared in that class. Else this method returns null.

Exception This method throws SecurityException if a security manager is present and the security conditions are not met.



Below programs demonstrate the getEnclosingClass() method.

Example 1:

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// Java program to demonstrate getEnclosingClass() method
  
import java.util.*;
  
public class Test {
    public static void main(String[] args)
        throws ClassNotFoundException
    {
  
        // returns the Class object for this class
        Class myClass = Class.forName("Test");
  
        System.out.println("Class represented by myClass: "
                           + myClass.toString());
  
        // Get the enclosing class of myClass
        // using getEnclosingClass() method
        System.out.println("EnclosingClass of myClass: "
                           + myClass.getEnclosingClass());
    }
}

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Output:

Class represented by myClass: class Test
EnclosingClass of myClass: null

Example 2:

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// Java program to demonstrate getEnclosingClass() method
  
import java.util.*;
  
class Main {
  
    public Object obj;
  
    Main()
    {
  
        class Arr {
        };
  
        obj = new Arr();
    }
  
    public static void main(String[] args)
        throws ClassNotFoundException
    {
        Main t = new Main();
  
        // returns the Class object
        Class myClass = t.obj.getClass();
  
        // Get the enclosing class of myClass
        // using getEnclosingClass() method
        System.out.println("EnclosingClass of myClass: "
                           + myClass.getEnclosingClass());
    }
}

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Output:

EnclosingClass of myClass: class Main

Reference: https://docs.oracle.com/javase/9/docs/api/java/lang/Class.html#getEnclosingClass–

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