output of this program?

[Anto Telvin]

hi all
i have a code like this .

class C
{
    {
      System.out.println("Initializer");
    }
 
public static void main(String[] k)
   {
     System.out.println("Hi from main method");
     C ob=new C();// if i am not using this line then only println        of main is working .
                  // i want to know what is happening here.how it is able to print the Initializer 
   }
}

[edit]Add code tags and improved indentation. CR[/edit]
[ October 08, 2008: Message edited by: Campbell Ritchie ]

[Steve Luke]

The instance initializer is executed every time an instance of the class is created, much like a Constructor, but before the Constructor gets called and you don't have to explicitly call it, it automatically gets called by the JVM.

[Anto Telvin]

thank you very much

[ram kumar]

Originally posted by Anto telvin Mathew:
thank you very much

FYI - this is the sequence of execution !

Probably, this would be informative additionally !

package codes;
 
public class C
{
//Initializer
{
System.out.println("Initializer Block ");
}

static
{
System.out.println("Static intializer Block");
}

C()
{
System.out.println("Constructor Block");
}
 
public static void main(String[] k)
{
System.out.println("Hi from main method");
C ob=new C();// if i am not using this line then only println of main is working .
                             // i want to know what is happening here.how it is able to print the Initializer 
}
}

Ouput !

Static intializer Block
Hi from main method
Initializer Block
Constructor Block

[edit]Additional newline in long line. CR[/edit]
[ October 08, 2008: Message edited by: Campbell Ritchie ]

[Campbell Ritchie]

Can I remind ranchers, please, to maintain indentation with code tags; I have added them to the original post and Ram Kumar has given a very good example of their use. Both these code examples show how much easier it is to read.