Intro. to Java Programming UPDATED Exam Questions and CORRECT Answers

Intro. to Java Programming UPDATED
Exam Questions and CORRECT Answers
Which of the following are storage devices?


Select one or more:
A. floppy disk
B. hard disk
C. flash drive

D. CD-ROM - CORRECT ANSWER - A, B, C, and D


Select the item that doesn't belong on the list.
A. software
B. machine language
C. JVM
D. bytecode

E. CPU - CORRECT ANSWER -E


The Java compiler translates source code into __________.
Select one:
A. Java bytecode
B. machine code
C. assembly language code

D. none of the above - CORRECT ANSWER - Java bytecode


For the Java program below, what file name should the source code be stored in?
public class MyProg{System.out.println( "Hello World" );}
Select one:

,A. MyProg.txt
B. MyProg.docx
C. MyProg.java

D. Any file name with a .java extension - CORRECT ANSWER - MyProg.java


Which of the following is the correct way to write the header for a main method?
Select one:
A. public static void main( string [] args )
B. public static void main( String [] args )
C. public static void Main( String [] args )

D. public static main( String [] args ) - CORRECT ANSWER - public static void main(
String [] args )


__________ is considered to be the brain of a computer.
Select one:
A. hardware
B. CPU
C. memory

D. disk drive - CORRECT ANSWER - CPU


Which JDK command will compile a Java program named YourProgram?
Select one:
A. java YourProgram
B. java YourProgram.java
C. javac YourProgram.java

D. javac YourProgram - CORRECT ANSWER - javac YourProgram.java


What is the output of the following program?

,public class 6Times2{public static void main( String [] args ){System.out.println( "6 times 2 is
12" );}}
Select one:
A. "6 times 2 is 12"
B. 6 times 2 is 12
C. The program will not compile

D. The program will compile, but it will produce a runtime error - CORRECT ANSWER -
The program will not compile


Which of the following statements are true? (select all that apply)
Select one or more:
A. The Java compiler translates source code into machine language that can be directly executed
on a computer.
B. The output file produced by the Java compiler is architecturally neutral.
C. A Java program named MyProgram should be stored in a file named MyProgram.java.

D. The Java language is a high-level programming language. - CORRECT ANSWER -A
and D


What was the original name for the Java language?
Select one:
A. Java
B. Oak
C. Maple

D. D - CORRECT ANSWER - Oak


What is the output of the following code?
public static void main( String [] args ){int a;int b = 10;a = 9;c = a + b;System.out.println( a +
"\t" + b + "\t" + c );}
Select one:
A. 9 10 19

, B. a = 9 b = 10 c = 19
C. The program will not compile and run
D. The program will compile, but a runtime error will be generated - CORRECT
ANSWER - The program will not compile and run


Which of the following is accomplished in the Java statement int myVariable; ? (select all that
apply)
Select one or more:
A. The name myVariable is made known to a portion of the program.
B. The data type int is associated with myVariable.
C. The value of myVariable is initialized to zero by default.

D. The value of myVariable is not initialized. - CORRECT ANSWER - A,B, and D


Which of the following are valid Java variable names? (select all that apply)
Select one or more:
A. Hello
B. test_score
C. 4ere
D. 5+5

E. float - CORRECT ANSWER - A and B


Which of the following statements is true?
Select one:
A. The portion of a program over which a variable is known and can be referenced is called a
variable's duration.
B. The portion of a program over which a variable is known and can be referenced is called a
variable's lifetime.
C. The portion of a program over which a variable is known and can be referenced is called a
variable's scope.