Which of the following identifiers are NOT reserved words in Java? (3 correct answers)

Which Java class is commonly used for reading input from the user?

Answer the questions below.

What is the output of this program?

public class Test {
 public static void main(String[] args) {
   int nb = 4;
   nb = incrementByTwo(nb);
   System.out.println("nb = " + nb);
 }

 public static int incrementByTwo(int num) {
   num = num + 2;
   return num;
 }
}

What is the output of this program?

public class Test {
 public static void main(String[] args) {
   int nb = 4;
   incrementByTwo(nb);
   System.out.println("nb = " + nb);
 }

 public static void incrementByTwo(int num) {
   num = num + 2;
 }
}

A keyword describing a method that does not return a value is:

What will be printed on the output after the execution of Java-code below:

The first line of the method is called:

What happens with the caller method, while the control goes to the called method:

An if-statement contained within another if-statement is called