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Java Class class getEnclosingMethod() method with example

Class class getEnclosingMethod() method: Here, we are going to learn about the getEnclosingMethod() method of Class class with its syntax and example.
Submitted by Preeti Jain, on November 19, 2019

Class class getEnclosingMethod() method

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

Syntax:

    public Method getEnclosingMethod();

Parameter(s):

• It does not accept any parameter.

Return value:

The return type of this method is Method, it returns recently enclosing method of the underlying class when this class is local or anonymous class.

Note: When this class is not local or anonymous, null is returned.

Example:

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

public class GetEnclosingMethodOfClass {
    public Object a1;
    public GetEnclosingMethodOfClass() {
        class A1 {};
        a1 = new A1();
    }

    public Object A1() {
        class A1 {};
        return new A1();
    }

    public static void main(String[] args) {

        // It returns the class of A1 method is 
        // GetEnclosingMethodOfClass and Method A1 is enclose in 
        // class GetEnclosingConstructorOfClass 
        Class cl = (new GetEnclosingMethodOfClass()).A1().getClass();

        System.out.print("Enclosing Method :");
        System.out.print(cl.getEnclosingMethod());
    }
}

Output

Enclosing Method :public java.lang.Object GetEnclosingMethodOfClass.A1()