Absolute Java 6th Edition - Solutions Manual by Walter Savitch & Kenrick Mock

Chapter 1 Getting Started 1
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Chapter 1
Getting Started
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◼ Multiple Choice
1) Java is an object-oriented programming language. An object-oriented language
(a) Uses structured programming.
A
(b) Views a program as consisting of objects which communicate through interactions.
(c) Functionally breaks down problems into smaller, more manageable problems.
(d) All of the above.
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Answer: B

2) In Java, the equal sign is used as the ___________ operator.
(a) increment
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(b) decrement
(c) assignment
(d) negation
Answer: C
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3) In Java, source code is compiled into object code called ______________.
(a) Bit-code
(b) Class code
(c) Method code
(d) Byte-code
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Answer: D

4) The hardest kind of error to detect in a computer program is a:
(a) Syntax error
(b) Run-time error
D
(c) Logic error
(d) All of the above
Answer: C
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5) Identify the invalid Java identifier.
(a) 1Week
(b) Week1
(c) amountDue
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(d) amount_due
Answer: A

6) What is the value of the variable amountDue?
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double price = 2.50;

double quantity = 5;
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double amountDue = 0;

amountDue = price * quantity;
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(a) 12
(b) 12.25
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(c) 12.5
(d) 13
Answer: C
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7) What is the value of 7.52e-5?
(a) 752000.0
(b) 0.0000752
(c) 0.000752
(d) 0.00752
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Answer: B

8) What is the Java expression for 4a 2 + 2b * c?
(a) (4 * a) + (2 * b) * c
(b) (4 * a * a) + ((2 * b) * c)
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(c) ((4 * a * a) + (2 * b)) * c
(d) (4 + a * a) + ((2 + b) * c)
Answer: B

9) What is the Java expression for 27xy?
(a) 27 + (x * y)
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(b) 27 * (x + y)
(c) 27 * x * y
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(d) 27x * y
Answer: C
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10) The value of the expression (int) 27.6 evaluates to:
(a) 28
(b) 27
(c) 26
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(d) None of the above.
Answer: B

11) Which operator is used to concatenate two strings?
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(a) +
(b) –
(c) *
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(d) /
Answer: A

12) Which operator returns the remainder of integer division?
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(a) %
(b) /
(c) *
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(d) none of the above
Answer: A

13) What is the value of the variable c in the statements that follow?
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String phrase = "Make hay while the sun is shining.";

char c = phrase.charAt(10);
(a) w
(b) h
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(c) i
(d) None of the above
Answer: B

14) The escape sequence the represents the new-line character is:
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(a) \r
(b) \t
(c) \n
(d) \\
Answer: C
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15) The syntax that declares a Java named constant named SALES_TAX is:
(a) double SALES_TAX = 7.50;
(b) public double SALES_TAX = 7.50;
(c) public static double SALES_TAX = 7.50;
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(d) public static final double SALES_TAX = 7.50;
Answer: D

16) In Java, a block comment is delimited by:
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(a) */ /*
(b) /* /*
(c) /* */
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(d) */ */
Answer: C

17) To mark a block comment for inclusion in the Javadoc documentation, the block must be delimited
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by:
(a) /** */
(b) */* */
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(c) **/ /*
(d) **/ */
Answer: A
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◼ True/False
1) Java began as a language for home appliances.
Answer: True
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2) Applets were designed to run as stand-alone applications.
Answer: False

3) The Java programming language allows you to concatenate two strings using the plus sign.
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Answer: True

4) Java is an interpreted language.
Answer: True

5) Java does not require that a variable be declared before it is used within a program.
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Answer: False
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6) A variable of type boolean can be explicitly converted to that of type int.
Answer: False
Copyright © 2016 Pearson Education, Inc., Hoboken NJ