Priority in java

Question

Can any one explain me how this output come

class Class
{    
    {   
        System.out.println("Instance Initializer block");   
    }

    Class()
    {
       System.out.println("Default Constructor");
    }

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

    public static void main(String[] Args) 
    {
        new Class();
        System.out.println("Hello world");
    }
}

output:

Static Block
Instance Initializer Block
Default Constructor
Hello World

Answer 1

The static initializer block is executed first, when the class is initialized, printing "Static Block" .

When the instance is created ( new Class() ), first the instance initializer block is executed (printing "Instance Initializer Block" ) and then the constructor (printing "Default Constructor" ).

Finally the println statement of the main method is executed, printing "Hello World" .

Answer 2

The sequence is as follows

1. Static initialization block is being ran when JVM (class loader ) loads Class ( static block is called irrespective of instance creation )
2. when you try to create the instance 2.1 init block is called 2.2 then the constructor.
3. At last your print statement