List of top Computer Science Questions on Java Operators

What is the use of the final keyword in Java?

What will be the output of the following Java code?

public class Test {
 public static void main(String[] args) {
    int x = 5;
    System.out.println(++x * 2);
  }
}

What will be the output of the following Java code?

public class Check {
 public static void main(String[] args) {
    int a = 5;
    System.out.println(a > 2 ? a < 5 ? 10 : 20 : 30);
  }
}