how this program works i didn't understand

[Ritesh raushan]

class Month
{
static Month m=new Month();
Month(){
	System.out.println("hi");
     m1();
	}
	static void m1(){
		System.out.println("hi from m1");
	}
       public static void main(String[] arg){
		   System.out.println("hi   from main");
		  }
}

output--hi
hi from m1
hi from main

[Jayesh A Lalwani]

Ritesh,

Please UseCodeTags while posting. I have added code tags for you

The static initializer of the class calls the constructor that calls m1. The static initializer is called as soon as the class is loaded, which happens before the main method is executed

[Jacob Morehouse]

Hi Ritesh,

You have a couple things going on, I'll try to walk you through. First, spacing is goofy... makes it hard to for you to debug (using NetBeans, alt+shift+f will fix spacing).

This can't exist here, can't instantiate an object of the class from within the class:

static Month m=new Month();{  

You have to put that code in the main, like this:

class Month  
{   

Month(){  
    System.out.println("hi");  
     m1();  
    }  
    static void m1(){  
        System.out.println("hi from m1");  
    }  

    public static void main(String[] arg){  
           System.out.println("hi   from main");  
           Month m=new Month(); 
    }  
} 

Hope that helps,

Jake

[Darryl Burke]

Jacob Morehouse wrote:This can't exist here, can't instantiate an object of the class from within the class:

Yes you can, just so long as it's a static member. Attempting to unconditionally initialize an instance member or a constructor-local variable of the same type would lead to a StackOverflowError.