QUESTION 1

A static variable of a class cannot be changed.

True

False

2 points

QUESTION 2

A .java file may have any number of public classes.

True

False

2 points

QUESTION 3

The following statement correctly creates a Scanner object for user input from the keyboard.

Scanner kb = new Scanner(System.keyboard);

True

False

2 points

QUESTION 4

A class is an instance of an object.

True

False

2 points

QUESTION 5

A class can have any number of constructors.

True

False

2 points

QUESTION 6

The functions or data members declared private in a class can only be accessed only through definition those functions declared in that class.

True

False

2 points

QUESTION 7

You can write a class that is useful with all its methods and variables declared private.

True

False

2 points

QUESTION 8

A class member that is to be shared among all objects of a class is called

		A final member
		A reference member
		A static member
		A value member

3 points

QUESTION 9

What will be the output of the following code fragment?

{

System.out.println("result = " + 1 + 4);

}

		result = 5
		result = 14
		result = 0
		result = null

3 points

QUESTION 10

When saving a Java source file, save it with the extension of

		.java
		.javac
		.class
		.src

3 points

QUESTION 11

A file with the .class extension means that the file:

		Contains Java source code.
		Contains HTML.
		was produced by the Java compiler.
		was produced by the Java interpreter.

3 points

QUESTION 12

Which of the following are correct?

		A constructor must be declared with a return type
		A constructor must be declared for each class.
		A class can have only one default constructor.
		A default constructor can only be provided by the java compiler.

3 points

QUESTION 13

Which keyword do we use to specify a constant variable ? (one the does not change after the initial assignment)

		const
		constant
		final
		fixed

3 points

QUESTION 14

Which Java package includes the Scanner class?

		awt
		swing
		util
		lang

3 points

QUESTION 15

Which of the following statements is used to terminate the current interation of the loop, and go on the next interation of the loop?

		break;
		continue;
		switch
		if .... else .... ;

3 points

QUESTION 16

What does the following Boolean expression evaluate to?

(!(5 < 3))

		unknown
		true
		false
		null