程序，写结果（）

class TT{
public TT(){
System.out.println("What a pleasure!");
}
public TT(String s){
this();
System.out.println("I am "+s);
}
}

public class Test extends TT{
public static void main(String args[]){
Test t = new Test("Tom");
}
public Test(String s){
super(s);
System.out.println("How do you do?");
}
public Test(){
this("I am Tom");
}

}