Skip to main content

Nested Classes sample program

Nested Classes

In Java, just like methods, variables of a class too can have another class as its member. Writing a class within another is allowed in Java.

The class written within is called the nested class, and the class that holds the inner class is called the outer class.


class Outer
{
 private class Inner
 {
   void dispaly()
   {
       System.out.println("this is inner class");
      }
  }
 void call()
 {
   Inner obj=new Inner();
   obj.dispaly();

 }
}

class InnerDemo{
public static void main(String s[])
{
 Outer ob=new Outer();
 ob.call();
}
}


Example solve watch video for understanding 

// inner class By Prakash Sonar

class outer
{
 private class Inner
 {
   void display()
  {
     System.out.println("inner class method");
  }

  }

 void Callinner()
 {
Inner obj=new Inner();
obj.display();
 
 
 }


}


class InnerDemo{

public static void main(String S[])
{
outer obj=new outer();
obj.Callinner();

}




}







Comments

Labels

Show more

Popular posts from this blog

Calculator Program using jFrame

Calculator Program using jFrame java swing calculator example java jframe calculator source code java code for simple calculator using gui how to make a calculator in advance java using JFrame simple calculator program in java using frame simple calculator program in java source code write a code to create simple calculator using swing component import javax.swing.*; import java.awt.event.*; public class TextFieldExample extends JFrame implements ActionListener{     JTextField tf1,tf2,tf3;     JButton b1,b2; //declaration of control     TextFieldExample(){         JFrame f= new JFrame("Button click demo"); //         tf1=new JTextField();         tf1.setBounds(50,50,150,20);         tf2=new JTextField();         tf2.setBounds(50,100,150,20);         tf3=new JTextField();       ...

Java Program to delete record using JFrame and Prepaired Statement

Java Program to delete record using JFrame and Prepaired Statement Here is table Design  Create table demo using two column as id  and Dname , id is primary key  Program source code  +import javax.swing.*;   import java.awt.event.*;   import java.sql.*; public class FrameDelete extends JFrame implements ActionListener{       JTextField tf1,tf2,tf3;       JButton b1,b2;   JLabel l1,l2; Connection con;    PreparedStatement psmt;   int result; //declaration of control    FrameDelete(){           JFrame f= new JFrame("InsertDemo");   // l1=new JLabel("Enter RollNo"); l1.setBounds(150,10,150,50);         tf1=new JTextField();           tf1.setBounds(150,50,150,20);   tf3=new JTextField();           tf3.setBounds(1...

Basic java

java java java, learn java online free, classroom java tutorial, beginners java, java beginners, java programming,  basic java , basic java Tutorial,  basic java  Assignment           Hello friends ,       I am learning Basic java . my motive behind this blog is to help those want to learn Basic java online free of cost and grab each and every basic aspect of java programming .     you can find java tutorial from basic on this blog i will post each and every assignment of basic java with source code .          we will divide our course  in to Day work .          Let's start Day One  Basic Java Assignment for  Beginners      Basic Requirement to learn Java Programming Download following software             1. Text Editor (Notepad, Notepad++, Edit pad, Eclipse...