Java: When is a static initialization block useful?

Question

What\'s the difference between initialization within a static block:

public class staticTest {

    sta         


        

Answer 1

You can use try/catch block inside static{} like below:

MyCode{

    static Scanner input = new Scanner(System.in);
    static boolean flag = true;
    static int B = input.nextInt();
    static int H = input.nextInt();

    static{
        try{
            if(B <= 0 || H <= 0){
                flag = false;
                throw new Exception("Breadth and height must be positive");
            }
        }catch(Exception e){
            System.out.println(e);
        }

    }
}

PS: Referred from this!