Which of these operator is used to generate an instance of an exception than can be thrown by using throw?

What is the output of the following code?

Which of the following is a valid example of method overloading in Java?

What is the result of the following code?

public class Test {

    public static void main(String[] args) {

        char c = 'A';

        int i = 5;

        System.out.println(c + i);

    }

}