JAVA EXAMPLE PROGRAMS

JAVA EXAMPLE PROGRAMS

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Program: Give an example of basic non-static member class.


Description:
You can create an instance for non-static member class by creating
instance for top level class.

Code:
package com.java2novice.nested.classes;

public class MyBasicNonStaticMemberClass {

	public class ChildClass{
		
		public void myMethod(){
			System.out.println("Hey you have called me!!!");
		}
	}
	
	public ChildClass getInnerInstance(){
		return this.new ChildClass();
	}
	
	public static void main(String a[]){
		MyBasicNonStaticMemberClass mbn = new MyBasicNonStaticMemberClass();
		ChildClass cc = mbn.getInnerInstance();
		cc.myMethod();
	}
}

Output:
Hey you have called me!!!
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Java Nested Classes Sample Code Examples

  1. How to initialise or call a static member class?
  2. How to implement a static member interface?
  3. How to access top level class variables from static member classes?
  4. Give an example of basic non-static member class.
  5. How to initialise non-static member (local class) class?
Knowledge Centre
Prevent a method from being overridden
By specifying final keyword to the method you can avoid overriding in a subcalss. Similarlly one can use final at class level to prevent creating subclasses.
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About Author

I'm Nataraja Gootooru, programmer by profession and passionate about technologies. All examples given here are as simple as possible to help beginners. The source code is compiled and tested in my dev environment.

If you come across any mistakes or bugs, please email me to [email protected] or you can comment on the page.

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Reference: Java™ Platform Standard Ed. 7 - API Specification | Java is registered trademark of Oracle.
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