constructor

[srinivas sridaragaddi]

 class X { 
       Y b = new Y();  
      X()   
       {         
        System.out.print("X");
         }
}
 class Y { 
       Y() 
        {    
                   System.out.print("Y");
         }
} 
public class Z extends X {  
      Y y = new Y();  
      Z() 
        {     
            System.out.print("Z");    
     }  
      public static void main(String[] args)    
     {       
         new Z();   
     
}
}   

output:yxyz


here i was expecting the output to be yyxz can someone please explain me that how they are getting this output

[suresh mulagala]

Simple,

when you do new Z(), Z's superclass constructor is called which is X's constructor but X gets a new instance of Y so Y's constructor is called so prints "Y", than "X" and since there is "Y y = new Y()" Y is printed and finally Z's constructor prints Z

so its yxyz

...vola

[Arnav Velimala]

Can anyone please tell when the following statements in the above example are executed?! I mean when the class is loaded or when it gets instantiated or at some other time.

Y b = new Y();  Y y = new Y();