/* package whatever; // don't place package name! */
 
import java.util.*;
import java.lang.*;
import java.io.*;
 
 
class MyObject {
	private String name;
	private MyObject other;
 
	public MyObject(String name) {
		this.name = name;
		System.out.println("create " + name);
	}
 
	// Il vaut mieux éviter d'utiliser finalize() sans raison
	// car cela complique la tâche du GC
	protected void finalize() {
		System.out.println("finalize " + name);
	}
 
	public void setOther(MyObject other) {
		this.other = other;
	}
}
 
/* Name of the class has to be "Main" only if the class is public. */
class Ideone
{
	public static void test () {
		MyObject p1 = new MyObject("object1");
		MyObject p2 = new MyObject("object2");
 
 
		MyObject p3 = new MyObject("object3");
 
		// on fait un lien monodirectionnel de p4 vers p5
		MyObject p4 = new MyObject("object4");
		MyObject p5 = new MyObject("object5");
		p4.setOther(p5);
 
		// on fait un lien bidirectionnel entre p6 et p7
		MyObject p6 = new MyObject("object6");
		MyObject p7 = new MyObject("object7");
		p6.setOther(p7);
		p7.setOther(p6);
	}
 
	public static void main (String[] args) throws java.lang.Exception {
		test();
		System.out.println();
		// crade : on force le GC
		// ne pas faire cela !!!
		for (int i=0; i<5; i++) {
			System.gc();
			Thread.yield();
		}
	}
}

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