Java Tutorial : Java Inner Classes

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Java Tutorial : Java Inner Classes

Java Tutorial : Java Inner Classes

OuterClass.java

public class OuterClass
{

    private int outerVariable = 10;
    
    public void outerDisplay()
    {
        System.out.println("outerDisplay method has been called...");
    }

    class InnerClass
    {
        int innerVariable=2000;

        public void innerDisplay()
        {
            System.out.println("innerDisplay method has been called...");
            System.out.println("outerVariable : " + outerVariable);
            System.out.println("innerVariable : " + innerVariable);
            outerDisplay();
        }
    }

}

InnerClassTest.java

public class InnerClassTest
{

    public static void main(String[] args)
    {
        OuterClass outClassObj = new OuterClass();
        OuterClass.InnerClass innerClassObj = outClassObj.new InnerClass();
        innerClassObj.innerDisplay();
    }

}

Output

innerDisplay method has been called...
outerVariable : 10
innerVariable : 2000
outerDisplay method has been called...

Click the below link to download the code:
https://sites.google.com/site/javaee4321/java/NestedClassDemo-Inner-App.zip?attredirects=0&d=1

Github Link:
https://github.com/ramram43210/Java/tree/master/BasicJava/NestedClassDemo-Inner-App

Bitbucket Link:
https://bitbucket.org/ramram43210/java/src/d3069ae3fffccb0c6ba4336662b6a2619d880c61/BasicJava/NestedClassDemo-Inner-App/?at=master

See also:

All JavaEE Viedos Playlist

All JavaEE Viedos

All JAVA EE Links

Servlets Tutorial

All Design Patterns Links

JDBC Tutorial

Java Collection Framework Tutorial

JAVA Tutorial