package Conllection;
import java.util.HashSet;
import java.util.Set;
public class TestSet {
public static void main( String args[]){
Set set = new HashSet();
Test a = new Test();
Test b = new Test();
Test c = new Test();
set.add(a);
set.add(b);
set.add(c);
System.out.print(set.size());
}
}
class Test{
private int number = 0;
public int hasCode(){
return 0;
}
public boolean equals( Object t ){
if(t==null){ return false; }
else return true;
}
}