public static void main(String[] args) {
        int x = 1;
        x += 1;
        System.out.println(x); // 2
        x *= 2;
        System.out.println(x); // 4
        x -= 3;
        System.out.println(x); // 1
        x /= 4;
        System.out.println(x); // 0
        
        float y = 1f;
        y += 1;
        System.out.println(y); // 2.0
        y *= 2;
        System.out.println(y); // 4.0
        y -= 3;
        System.out.println(y); // 1.0
        y /= 4;
        System.out.println(y); // 0.25
    }