/*

author: Jaydatt Patel

Nested Class

*/

class outer_class {

int o1 = 10;

static int o2 = 20;

class inner

{

int i1 = 100;

static int i2 = 200;

void inner_display()

{

System.out.println("In inner access non-static o1 of outer: " + o1);

System.out.println("In inner access static o2 of outer: " + o2);

}

}

static class inner_static

{

int i21 = 1000;

static int i22 = 2000;

void inner_static_display()

{

System.out.println("In inner_static can not access non-static o1 of outer");

System.out.println("In inner_static access static o2: " + o2);

}

}

void inner_display()

{

inner in_1 = new inner();

in_1.inner_display();

}

void outer_display()

{

System.out.println("In outer can not access non-static i1 of inner");

System.out.println("In outer access static i2 of inner : "+ inner.i2);

System.out.println("In outer can not access non-static i21 of inner_static");

System.out.println("In outer access static i22 of inner_static : "+ inner_static.i22);

}

}

public class Nested_class{

public static void main(String args[])

{

outer_class outer = new outer_class();

System.out.println("------1------");

System.out.println("In main non static inner class can not create");

//error : outer_class.inner in = new outer_class.inner();

System.out.println("In main static inner class create");

outer_class.inner_static in_static = new outer_class.inner_static();

System.out.println("------2------");

System.out.println("In main access in_static.i2 : " + in_static.i21);

System.out.println("In main access in_static.i22 : " + in_static.i22);

System.out.println("In main in_static.inner_static_display():");

in_static.inner_static_display();

System.out.println("------3------");

System.out.println("In main access o1: " + outer.o1);

System.out.println("In main access o2: " + outer.o2);

System.out.println("------4------");

outer.inner_display();

System.out.println("------5------");

outer.outer_display();

System.out.println("------6------");

System.out.println("In main can not access non-static i1 of inner");

System.out.println("In main can not access static i2 of inner");

System.out.println("In main can not access non-static i21 of inner_static");

System.out.println("In main can not access static i22 of inner_static");

}

}