Question 1

Which of the following statements would display the phase Java is fun?

Accepted Answer

A)   System.out.println( "hellois fun\rJava " ) ;
B)   System.out.println( 'Java is fun' ) ;
C)   System.out.println( "\"Java is fun\"" ) ;
D)   System.out.println( Java is fun ) ;E) A) and D)
F) A) and B) A

Question 2

Which of the following statement displays Hello World?

Accepted Answer

A)   System.out.printf( "%2s", "Hello " "World" ) ;
B)   System.out.printf( "%s %s", "Hello", "World" ) ;
C)   System.out.printf( "%s%s", "Hello, World" ) ;
D)   System.out.printf( "s% s%", "Hello", "World" ) ;E) C) and D)
F) B) and D)

Question 3

What will be output after the following Java statements have been executed (assume all variables are of type int) ?
A = 4;
B = 12;
C = 37;
D = 51;
If ( a  b ) 
System.out.println( "a > b" ) ;
If ( d <= c ) 
System.out.println( "d <= c" ) ;
If ( c != d ) 
System.out.println( "c != d" ) ;

Accepted Answer

A)   a 
B)   a C != d
C)   a > b c != d
D)   a A != bE) A) and C)
F) B) and C)

Question 4

Which of the following is a variable declaration statement?

Accepted Answer

A)   int total;
B)   import java.util.Scanner;
C)   public static void main( String args[] ) 
D)   // first string entered by userE) None of the above
F) A) and B) A

Question 5

The filename for the public class that begins with public class Addition must be

Accepted Answer

A)   public.java.
B)   public.class.java.
C)   Addition.java.
D)   addition.java.E) B) and C)
F) All of the above

Question 6

Which of the following does not contain a syntax error?

Accepted Answer

A)   system.out.println( 'Hello world!' ) :
B)   System. out.println( "Hello world!" ) ;
C)   System.out. println( "Hello world!" ) ;
D)   System.out.println(  Hello world! ) ;E) None of the above
F) B) and C)

Question 7

Which of the following statements is true?

Accepted Answer

A)   System.out.print("Enter your age: ") ; prompts the user to take action.
B)   Class names typically begin with a capital letter.
C)   Package java.lang is imported in every Java program.
D)   All of the above are true.E) All of the above
F) A) and B)

Question 8

Which of the following statements is false?

Accepted Answer

A)   Primitive types are keywords.
B)   Primitive types must appear in all lowercase letters.
C)   Real numbers contain decimal points.
D)   Variable name identifiers must begin with a lowercase letter.E) B) and D)
F) B) and C) D

Question 9

Which of the following is not an arithmetic operator?

Accepted Answer

A)   +
B)   -
C)   .
D)   %E) A) and B)
F) A) and C)

Question 10

Which command compiles the Java source code file Welcome.java?

Accepted Answer

A)   cd Welcome.java
B)   javac Welcome.java
C)   java Welcome.java
D)   compile Welcome.javaE) B) and D)
F) C) and D)

Question 11

A(n)  ________ enables a program to read data from the user.

Accepted Answer

A)   printf.
B)   import declaration.
C)   Scanner.
D)   main.E) B) and D)
F) B) and C)

Question 12

When method printf requires multiple arguments, the arguments are separated with ________.

Accepted Answer

A)   colons (:) .
B)   semicolons (;) .
C)   commas (,) .
D)   periods (.) .E) B) and D)
F) B) and C)

Question 13

Portions of statements that contain calculations are called

Accepted Answer

A)   variables.
B)   constants.
C)   expressions.
D)   None of the above.E) B) and C)
F) None of the above

Question 14

Programs remember numbers and other data in the computer's memory and access that data through program elements called

Accepted Answer

A)   comments.
B)   messages.
C)   integers.
D)   variables.E) A) and B)
F) B) and D)

Question 15

End-of-line comments that should be ignored by the compiler are denoted using

Accepted Answer

A)   Two forward slashes ( // ) .
B)   Three forward slashes ( /// ) .
C)   A slash and a star ( /* ) .
D)   A slash and two stars ( /** ) .E) A) and B)
F) A) and D)

Question 16

Which is the output of the following statements?
System.out.print( "Hello ") ;
System.out.println( "World" ) ;

Accepted Answer

A)   Hello World.
B)   helloWorld
C)   Hello  World
D)   World helloE) B) and C)
F) All of the above

Question 17

Which command executes the Java class file Welcome.class?

Accepted Answer

A)   java welcome
B)   java Welcome.class
C)   java Welcome
D)   run Welcome.classE) None of the above
F) All of the above

Question 18

Which of the following is not a compilation error?

Accepted Answer

A)   Neglecting to initialize a local variable in a method before it is used.
B)   Placing a semicolon at the end of the first line of an if statement.
C)   Omitting the left and right parenthesis for the condition of an if statement.
D)   All are compilation errors.E) A) and B)
F) A) and C)

Question 19

All import declarations must be placed

Accepted Answer

A)   inside the class declaration's body.
B)   before the class declaration.
C)   after the class declaration.
D)   all of the above will work.E) A) and C)
F) A) and B)

Question 20

Which of the following is not a Java primitive type?

Accepted Answer

A)   char
B)   byte
C)   real
D)   doubleE) A) and B)
F) B) and D)

Exam 2: Introduction to Java Applications

Which of the following statements would display the phase Java is fun?

Correct Answer
verified
A

Which of the following statement displays Hello World?

Correct Answer
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Correct Answer
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Which of the following is a variable declaration statement?

Correct Answer
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A

The filename for the public class that begins with public class Addition must be

Correct Answer
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Which of the following does not contain a syntax error?

Correct Answer
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Which of the following statements is true?

Correct Answer
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Which of the following statements is false?

Correct Answer
verified
D

Which of the following is not an arithmetic operator?

Correct Answer
verified

Which command compiles the Java source code file Welcome.java?

Correct Answer
verified

A(n) ________ enables a program to read data from the user.

Correct Answer
verified

When method printf requires multiple arguments, the arguments are separated with ________.

Correct Answer
verified

Portions of statements that contain calculations are called

Correct Answer
verified

Programs remember numbers and other data in the computer's memory and access that data through program elements called

Correct Answer
verified

End-of-line comments that should be ignored by the compiler are denoted using

Correct Answer
verified

Which is the output of the following statements? System.out.print( "Hello ") ; System.out.println( "World" ) ;

Correct Answer
verified

Which command executes the Java class file Welcome.class?

Correct Answer
verified

Which of the following is not a compilation error?

Correct Answer
verified

All import declarations must be placed

Correct Answer
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Which of the following is not a Java primitive type?

Correct Answer
verified

Exam 2: Introduction to Java Applications

Which of the following statements would display the phase Java is fun?

Correct AnswerverifiedA

Which of the following statement displays Hello World?

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

Which of the following is a variable declaration statement?

Correct AnswerverifiedA

The filename for the public class that begins with public class Addition must be

Correct AnswerverifiedShow Answer

Which of the following does not contain a syntax error?

Correct AnswerverifiedShow Answer

Which of the following statements is true?

Correct AnswerverifiedShow Answer

Which of the following statements is false?

Correct AnswerverifiedD

Which of the following is not an arithmetic operator?

Correct AnswerverifiedShow Answer

Which command compiles the Java source code file Welcome.java?

Correct AnswerverifiedShow Answer

A(n) ________ enables a program to read data from the user.

Correct AnswerverifiedShow Answer

When method printf requires multiple arguments, the arguments are separated with ________.

Correct AnswerverifiedShow Answer

Portions of statements that contain calculations are called

Correct AnswerverifiedShow Answer

Programs remember numbers and other data in the computer's memory and access that data through program elements called

Correct AnswerverifiedShow Answer

End-of-line comments that should be ignored by the compiler are denoted using

Correct AnswerverifiedShow Answer

Which is the output of the following statements? System.out.print( "Hello ") ; System.out.println( "World" ) ;

Correct AnswerverifiedShow Answer

Which command executes the Java class file Welcome.class?

Correct AnswerverifiedShow Answer

Which of the following is not a compilation error?

Correct AnswerverifiedShow Answer

All import declarations must be placed

Correct AnswerverifiedShow Answer

Which of the following is not a Java primitive type?

Correct AnswerverifiedShow Answer

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A

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A

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D

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