Quiz 1

One byte has ________ bits. Selected Answer: a. 8 Correct Answer: a. 8

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The JDK command to compile a class in the file Test.java is Selected Answer: e. javac Test.java Correct Answer: e. javac Test.java

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Which of the following code has the best style? I: public class Test { public static void main(String[] args) { System.out.println("Welcome to Java!"); } } II: public class Test { public static void main(String[] args) { System.out.println("Welcome to Java!"); } } III: public class Test { public static void main(String[] args) { System.out.println("Welcome to Java!"); } } IV: public class Test { public static void main(String[] args) { System.out.println("Welcome to Java!"); } } Selected Answer: d. II Correct Answer: a. IV

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________ is a technical definition of the language that includes the syntax and semantics of the Java programming language. Selected Answer: c. Java language specification Correct Answer: c. Java language specification

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___________ translates high-level language program into machine language program. Selected Answer: c. A compiler Correct Answer: c. A compiler

A complier

Java compiler translates Java source code into _________. Selected Answer: c. Java bytecode Correct Answer: c. Java bytecode

Code

nalyze the following code. I: public class Test { public static void main(String[] args) { System.out.println("Welcome to Java!"); } } II: public class Test { public static void main(String[] args) { System.out.println("Welcome to Java!"); } } Selected Answer: b. Only the code in I can compile and run and display Welcome to Java. Correct Answer: d. Both I and II can compile and run and display Welcome to Java, but the code in I has a better style than II.

Code

________ provides an integrated development environment (IDE) for rapidly developing Java programs. Editing, compiling, building, debugging, and online help are integrated in one graphical user interface. Selected Answer: c. Java JDK Correct Answer: a. Java IDE

Java IDE

Computer can execute the code in ____________. Selected Answer: a. machine language Correct Answer: a. machine language

Machine Language CP

The main method header is written as: Selected Answer: c. public static void main(String[] args) Correct Answer: c. public static void main(String[] args)

Main Method Header

The speed of the CPU may be measured in __________. Selected Answers: d. gigahertz Correct Answers: b. megahertz and d. gigahertz

Speed of CPU

Which of the following is not permanent storage devices? Selected Answer: a. main memory Correct Answer: a. main memory

Storage Device

Java was developed by ____________. Selected Answer: b. Sun Microsystems Correct Answer: b. Sun Microsystems

Sun Microsystems

Which of the following statements is correct? Selected Answer: a. Every statement in a program must end with a semicolon. Correct Answer: a. Every statement in a program must end with a semicolon.

What does Java end in?

________ is interpreted. Selected Answer: a. Java Correct Answer: a. Java

What is Java

____________ is an operating system. Selected Answer: e. Windows Correct Answer: e. Windows

Windows

Which of the following lines is not a Java comment? Selected Answers: c. -- comments Correct Answers: c. -- comments e. ** comments **

c. and e.

Programming style is important, because ______________. Selected Answers: a. good programming style makes a program more readable Correct Answers: a. good programming style makes a program more readable c. good programming style helps reduce programming errors

c. good programming style helps reduce programming errors

If a program compiles fine, but it produces incorrect result, then the program suffers __________. Selected Answer: b. a logic error Correct Answer: b. a logic error

logic error

A block is enclosed inside __________. Selected Answer: c. braces Correct Answer: c. braces

{ { braces