/**
  * @author  monika heiner
  * @version 1.0
  * @date 05.09.2001
  * @package dssz.intro
  * @class PointerDemo
  */

class PointerDemo {

// Umgang mit Pointern, d.h. Zeigervariablen 
public static void main(String[] args) { 

/*a1*/	class MyInteger{int i;};

	MyInteger p = null;  
	p = new MyInteger();
	
/*a2*/	MyInteger q = new MyInteger();

	int variable = 5;

/*b*/	p.i = 3;
	q.i = variable;
	
	System.out.println("(b): p=> " + p.i + "  q=> " + q.i);
	// (b): p=> 3  q=> 5
		
	System.out.println("     (p == q) => " + (p == q)+"\n");
	//     (p == q) => false

/*c*/	p.i = q.i;
	System.out.println("(c): p=> " + p.i + "  q=> " + q.i);
	// (c): p=> 5  q=> 5
		
	System.out.println("     (p == q) => " + (p == q)+"\n");
	//     (p == q) => false
		
/*d*/  	p = q;
	System.out.println("(d): p=> " + p.i + "  q=> " + q.i);
	// (d): p=> 5  q=> 5
		
	System.out.println("     (p == q) => " + (p == q)+"\n");
	//    (p == q) => true
		
/*e*/	p.i = 7;
	System.out.println("(e): p=> " + p.i + "  q=> " + q.i);
	// (e): p=> 7  q=> 7
		
	System.out.println("     (p == q) => " + (p == q)+"\n");
	//     (p == q) => true
					
} // main

} //PointerDemo