static block in java class initailizer|initialization Significance of with example|code|execution flow|tutorial

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    Static Block   :

          Static block is execution is started when any class contains static block then static block 

          is loaded into memory. 

         That means before the main method is called static block is used for Initialization of static 

         members.Static block is not inside any method and this block will get executed only once 

          while loading the class.

      Example :

  

          public class SBDemo {

           static{

                  System.out.println("this is static block");

                    }

                  public static void main(String args[]){

                    System.out.println(“this is main method”);

                     }

                 }

      Analysis:

           From the above program we can say that static block execution would take first then it    

     will execute or initialize the data members in main method. Then if we run this program first it   

     will print this is static block then it will print this is main method.

      Can We Execute a java program without main method?

      Static block Vs Static Method Vs Main Method