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Nested Classes

OuterClass.java
------------------------------------------------------------
package org.developerssolutions;

public class OuterClass {

    public void method(){
        System.out.println("OuterClass.Method1");
    }
   
    class InnerClass{
        public void method(){
            System.out.println("OuterClass.InnerClass.Method1");
        }
        class InnerInnerClass{
            public void method(){
                System.out.println("OuterClass.InnerClass.InnerInnerClass.Method1");
            }
        }
    }
   
}

Test.java
-------------------------------------------------------------------------------
package org.developerssolutions;

public class Test {

    public static void main(String[] args) {
        //Outer Class Object
        OuterClass oc=new OuterClass();
       
        //Inner Class Objects
        OuterClass.InnerClass ic=oc.new InnerClass();
        OuterClass.InnerClass.InnerInnerClass oii=ic.new InnerInnerClass();
        oc.method();
        ic.method();
        oii.method();
    }

}


Output:
-----------------------------------------------------------------------------------------
OuterClass.Method1
OuterClass.InnerClass.Method1
OuterClass.InnerClass.InnerInnerClass.Method1

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