Java Class class getDeclaringClass() method with example

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

Class class getDeclaringClass() method

getDeclaringClass() method is available in java.lang package.
getDeclaringClass() method is used to return the declared Class object denoting the Class in which it is declared when this class or interface denoted by this Class is a part or member of other class.
getDeclaringClass() 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.
getDeclaringClass() method does not throw an exception at the time of returning Class object.

Syntax:

    public Class getDeclaringClass ();

Parameter(s):

It does not accept any parameter.

Return value:

The return type of this method is Class, it returns an object of declared class from this Class.

Note:

When the class or interface is not part or member of other class, null is returned.
When this class reflects primitive or void type or an array class, null is returned.

Example:

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

import java.lang.reflect.*;
public class GetDeclaringClassOfClass {
    public static void main(String[] args) {
        // It returns the Class object with 
        // the given class name
        Class cl = Integer.class;

        // It returns an array of Methods 
        // that denotes the private, protected, public and default 
        // Methods of the class Integer
        Method[] methods = cl.getMethods();

        // Traverse Integer class
        for (int i = 0; i < methods.length; ++i) {
            Class declare_classes = methods[i].getDeclaringClass();
            System.out.print(" Declaring Methods Class: ");
            System.out.println(declare_classes.toString());
        }
    }
}

Output

 Declaring Methods Class: class java.lang.Integer
 Declaring Methods Class: class java.lang.Integer
 Declaring Methods Class: class java.lang.Integer
 Declaring Methods Class: class java.lang.Integer
 Declaring Methods Class: class java.lang.Integer
 Declaring Methods Class: class java.lang.Integer
 Declaring Methods Class: class java.lang.Integer
 Declaring Methods Class: class java.lang.Integer
 Declaring Methods Class: class java.lang.Integer
 Declaring Methods Class: class java.lang.Integer
 Declaring Methods Class: class java.lang.Integer
 Declaring Methods Class: class java.lang.Integer
 Declaring Methods Class: class java.lang.Integer
 Declaring Methods Class: class java.lang.Integer
 Declaring Methods Class: class java.lang.Integer
 Declaring Methods Class: class java.lang.Integer
 Declaring Methods Class: class java.lang.Integer
 Declaring Methods Class: class java.lang.Integer
 Declaring Methods Class: class java.lang.Integer
 Declaring Methods Class: class java.lang.Integer
 Declaring Methods Class: class java.lang.Integer
 Declaring Methods Class: class java.lang.Integer
 Declaring Methods Class: class java.lang.Integer
 Declaring Methods Class: class java.lang.Integer
 Declaring Methods Class: class java.lang.Integer
 Declaring Methods Class: class java.lang.Integer
 Declaring Methods Class: class java.lang.Integer
 Declaring Methods Class: class java.lang.Integer
 Declaring Methods Class: class java.lang.Integer
 Declaring Methods Class: class java.lang.Integer
 Declaring Methods Class: class java.lang.Integer
 Declaring Methods Class: class java.lang.Integer
 Declaring Methods Class: class java.lang.Integer
 Declaring Methods Class: class java.lang.Integer
 Declaring Methods Class: class java.lang.Integer
 Declaring Methods Class: class java.lang.Integer
 Declaring Methods Class: class java.lang.Integer
 Declaring Methods Class: class java.lang.Integer
 Declaring Methods Class: class java.lang.Integer
 Declaring Methods Class: class java.lang.Integer
 Declaring Methods Class: class java.lang.Integer
 Declaring Methods Class: class java.lang.Integer
 Declaring Methods Class: class java.lang.Integer
 Declaring Methods Class: class java.lang.Integer
 Declaring Methods Class: class java.lang.Integer
 Declaring Methods Class: class java.lang.Integer
 Declaring Methods Class: class java.lang.Integer
 Declaring Methods Class: class java.lang.Integer
 Declaring Methods Class: class java.lang.Integer
 Declaring Methods Class: class java.lang.Integer
 Declaring Methods Class: class java.lang.Object
 Declaring Methods Class: class java.lang.Object
 Declaring Methods Class: class java.lang.Object
 Declaring Methods Class: class java.lang.Object
 Declaring Methods Class: class java.lang.Object
 Declaring Methods Class: class java.lang.Object

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