Order of initialization

[WiLL Tao]

 class StaticStuff 
{
     static int x = 10;
     static { x += 5; }
     public static void main(String args[]) 
{
       System.out.println("x = " + x);
     }
     static { x /= 5; } //
   } 

In my memory, static block is execute when class file be loaded in JVM,hence static { x /= 5; }should be failed;but i run this code that got answer,so anyone can tell me the order of initialization?Thanks

[Sigfred Zamo]

The JVM first executes static initializers for StaticStuff ancestors recursively. Then, executes static initializers for your StaticStuff. Later, executes the main() methodh so you can see the output with variable�s value computed.

[Dave Vick]

Will
Check the JLS section 12.5 the exact steps and the exact order things are done in.

[Steven Wong]

Hi,
Order of code execution
1.static variables initialization.
2.static initializer block execution. (in the order of declaration, if multiple blocks found)
3.constructor header ( super or this – implicit or explicit )
4.instance variables initialization / instance initializer block(s) execution
5.rest of the code in the constructor
Interfaces
Clement

[Steven Wong]

Sorry, pls ignore the last word "Interfaces".
Type error....

[Ase Lindskog]

Originally posted by Clement Ng:
Hi,
Order of code execution
1.static variables initialization.
2.static initializer block execution. (in the order of declaration, if multiple blocks found)
3.constructor header ( super or this – implicit or explicit )
4.instance variables initialization / instance initializer block(s) execution
5.rest of the code in the constructor
Interfaces
Clement

This order of execution is really helpful, I actually copy it down.
But I have a question related to this. Is this statement true or false: "The default constructor initializes the instance variables declared in the class. " Looks like instance variables intitialized at the time constructor is executed(between step 3 and 5), but is it OK to say constructor initializes the instance variables??

[WiLL Tao]

Thanks folks who join this thread,now I found good trace tool from JDK
javap.

C:\scjp>javap StaticStuff
Compiled from StaticStuff.java
class StaticStuff extends java.lang.Object {
    static int x;
    StaticStuff();
    public static void main(java.lang.String[]);
    static {};
}

This tool indicates the step when class execute,right?
[ April 17, 2002: Message edited by: WiLL Tao ]