What will be outputted by the following code?

System.out.println(5 + "5" + 5);

		510
		555
		60
		105
		15

4 points

QUESTION 17

A class must implement all abstract methods inherited from a parent class or from an interface, or else it must be declared abstract itself.

True

False

2 points

QUESTION 18

Which of the following is the correct way to declare the main method in Java?

		public static void main()
		int main(int argc, char **argv)
		private static void main(String[] args)
		public static void main(String[] args)

4 points

QUESTION 19

Which keyword is used in Java to mark an instance field (also known as a member or an attribute) as a constant?

		abstract
		const
		static
		final

4 points

QUESTION 20

What will be outputted by the following code?

System.out.println(72 + 72 + "72");

		14472
		216
		The compilation of this code will fail.
		727272
		72

4 points

QUESTION 21

Place the following data types in order from smallest range to largest range of values.

- 1. 2. 3. 4.

long

- 1. 2. 3. 4.

byte

- 1. 2. 3. 4.

int

- 1. 2. 3. 4.

short

4 points

QUESTION 22

What changes will make this code compile? class X { X() { } private void one() { } } public class Y extends X { Y() { } private void two() { one(); } public static void main(String[] args) { new Y().two(); } }

		Adding the protected modifier to the X() constructor
		Removing the private modifier from the two() method
		Removing the Y() constructor
		Adding the public modifier to the declaration of class X
		Changing the private modifier on the declaration of the one() method to protected

4 points

QUESTION 23

Which of the following programs contains no errors? (Study your choices carefully!)

		package edu.jsu.mcis.cs232; import java.util.String; public class Hello { public static void main(String[] args) { System.out.println("Hello, world!"); } }
		package edu.jsu.mcis.cs232; include java.lang.String; public class Hello { public static void main(String[] args) { System.out.println("Hello, world!"); } }
		package edu.jsu.mcis.cs232; public class Hello { public static void main(String[] args) { System.out.println("Hello, world!"); } }
		import java.lang.String; package edu.jsu.mcis.cs232; public class Hello { public static void main(String args[]) { String str = "Hello, world!"; System.out.println(str); } }

4 points

QUESTION 24

By declaring a variable to be of type auto, Java will automatically deduce the type of the variable from the type of the value with which it is initialized.

True

False

2 points