/* package whatever; // don't place package name! */
/* Exercise for CSN-103, IIT Roorkee */
 
import java.util.*;
import java.lang.*;
import java.io.*;
 
/* Name of the class has to be "Main" only if the class is public. */
class Ideone
{
public void finalize(){System.out.println("object is garbage collected");}  
 public static void main(String args[]){  
  Ideone s1=new Ideone();  
  Ideone s2=new Ideone();
  Ideone s3=new Ideone();  
  System.out.println(s1);
   System.out.println(s2);
  s1=s2;
  System.out.println(s1);
  s1=new Ideone();
  System.out.println(s1);
  s2=null;
  s3=s1;
  //s1=null;
  //s1=s3;
  System.gc();  
}
}
 
 

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