Static Initialization Blocks

Question

As far as I understood the "static initialization block" is used to set values of static field if it cannot be done in one line.

But I do not understand why we need a special block for that. For example we declare a field as static (without a value assignment). And then write several lines of the code which generate and assign a value to the above declared static field.

Why do we need this lines in a special block like: static {...}?

Answer 1

static block is used for any technology to initialize static data member in dynamic way,or we can say for the dynamic initialization of static data member static block is being used..Because for non static data member initialization we have constructor but we do not have any place where we can dynamically initialize static data member

Eg:-class Solution{
         // static int x=10;
           static int x;
       static{
        try{
          x=System.out.println();
          }
         catch(Exception e){}
        }
       }

     class Solution1{
      public static void main(String a[]){
      System.out.println(Solution.x);
        }
        }

Now my static int x will initialize dynamically ..Bcoz when compiler will go to Solution.x it will load Solution Class and static block load at class loading time..So we can able to dynamically initialize that static data member..

}