Java Static Initializer Block

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    static int B;
    static int H;
    static boolean flag;
    

    static { try { Scanner scan = new Scanner(System.in); B = scan.nextInt(); H = scan.nextInt(); scan.close();

            if (B <= 0 || H <= 0) {
                    throw new IllegalArgumentException("Breadth and height must be positive");
            } else {
                    flag = true;
            }
    } catch (IllegalArgumentException e) {
            System.out.println("java.lang.Exception: " + e.getMessage());
    }
    

    }