Java object initialization

Java object

Class {

{Show (0 );}

Int x = 1;

{Show (1 );}

A () {x = 2 ;}

Void show (int label ){}

}

Class B extends {

{Show (2 );}

Int y = 1;

{Show (3 );}

B () {y = 2 ;}

Void show (int label ){

System. out. println (label + ": x =" + x + "y =" + y );

}

}

Public class C {

Public static void main (String [] args ){

New B (). Show (4 );

}

}

Output:

========================================================== ==========

0: x = 0 y = 0

1: x = 1 y = 0

2: x = 2 y = 0

3: x = 2 y = 1

4: x = 2 y = 2

Describes the initialization sequence:

0. Allocate storage space for the base class and sub-class members

1. Initial values assigned to base class members

2. base class Constructor

3. Assign initial values to subclass members

4. Subclass Constructor