Question 1

It is best to use the ____ available text editor when writing Java programs.
A) most complex
B) simplest
C) best
D) latest

Accepted Answer

It is best to start with a simple text editor when writing Java programs, such as Notepad or TextEdit, in order to avoid relying on features provided by more complex editors that may not be compatible with Java.

Question 2

If a compiler detects a violation of language rules, it refuses to translate the class to ____.
A) an application
B) a logic error
C) machine code
D) Java

Accepted Answer

When a compiler detects a violation of language rules, it fails to translate the code into machine code or executable code. It does not create an application or Java code, and it does not result in a logic error (which would only be detected at runtime).

Question 3

{    public static void main(String[] args)
   {
      System.out.println("First Java application");
   }
}
Given the above code, which item identifies the access specifier?
A) public
B) static
C) void
D) First

Accepted Answer

The access specifier in this code is "public". It determines the visibility of the method to other classes.

Question 4

A(n) ____________________ error occurs when the syntax of the program is correct and the program compiles but produces incorrect results when you execute it.

Accepted Answer

The answer of A(n) ____________________ error occurs when the syntax...

Question 5

It is a tradition among programmers that the first program you write in any language produces "____" as its output.
A) Hi, your name!
B) Hello, world!
C) My first program!
D) Hello, your name!

Accepted Answer

"Hello, world!" is the traditional phrase used in the first program of any programming language because it is simple and easy to remember. It is used to verify that the software is installed and functioning correctly.

Question 6

public class First    {
     public static void main(String[] args)
     {
        System.out.println("First Java application");
     }
   }
Given the above code, which item identifies that the method will work without instantiating an object of the class?
A) public
B) static
C) void
D) println

Accepted Answer

The "static" keyword indicates that the method belongs to the class itself, rather than to an instance of the class. This means that the method can be called directly on the class without needing to create an instance of the class first.

Question 7

After a successful compile, you can run the class file on any computer that has a ____.
A) Java language interpreter
B) Web browser
C) text editor
D) DOS

Accepted Answer

A Java language interpreter is needed to execute the compiled class file. Without it, the computer would not be able to understand and execute the Java code. Web browsers, text editors, and DOS are not relevant for running a compiled Java program.

Question 8

public class First {
   public static void main(String[] args)
   {
      System.out.println("First Java application");
   }
}
Given the above code, which item identifies the name of the class?
A) public
B) static
C) void
D) First

Accepted Answer

The name of the class is identified by the identifier after the class keyword, which in this case is "First".

Question 9

The ____________________ is also called the Java class library; it contains information about how to use every prewritten Java class, including lists of all the methods you can use with the classes.

Accepted Answer

The answer of The ____________________ is also called the Java...

Question 10

____________________ comments are a special case of block comments that are used to generate documentation.

Accepted Answer

The answer of ____________________ comments are a special case of...

Question 11

You use an import statement when you want to access a built-in Java class that is contained in a group of classes called a(n) ____________________.

Accepted Answer

The answer of You use an import statement when you...

Question 12

When you run a Java application using the ____ command, do not add the .class extension to the filename.
A) class
B) static
C) java
D) output

Accepted Answer

The correct command to run a Java application is "java" followed by the filename without the .class extension. For example, if the filename is "MyProgram.class", the command should be "java MyProgram". Adding the .class extension will result in an error message.

Question 13

In programming, named computer memory locations are called ____________________ because they hold values that might vary.

Accepted Answer

The answer of In programming, named computer memory locations are...

Question 14

Java contains a class named ____ that allows you to produce dialog boxes.
A) JBox
B) JOptionPane
C) JDialog
D) JGUI

Accepted Answer

The JOptionPane class is specifically designed to provide pre-built dialog boxes that can be easily customized and used in Java applications. It offers a variety of dialog types such as message, input, confirm, and more, making it a very useful tool for creating interactive user interfaces.

Question 15

If you receive an error that states, "Exception in thread 'main' java.lang.NoClassDefFoundError," when you try to execute the application, you probably do not have your ____ set correctly.
A) class length
B) class path
C) java
D) object

Accepted Answer

This error is commonly caused by a missing or incorrect class path, which is the set of directories where Java looks for your compiled classes. Double check that your class path is set correctly.

Question 16

Whenever a method requires multiple arguments, the arguments are always separated with ____.
A) commas
B) periods
C) forward slashes
D) brackets

Accepted Answer

Commas are the standard way to separate multiple arguments in a method call.

Question 17

A ____ is an error not detected until the program asks the computer to do something wrong, or even illegal, while executing.
A) syntax error
B) run-time error
C) package
D) Java API

Accepted Answer

A run-time error occurs during the execution of a program and results in the program terminating abnormally or producing unexpected results. It is different from a syntax error, which is a mistake in the program's code that prevents it from being compiled or executed. Packages and Java APIs are related to Java programming but not applicable to the given question.

Question 18

public class First    {
     public static void main(String[] args)
     {
        System.out.println("First Java application");
     }
   }
Given the above code, which item identifies the method's return type?
A) public
B) static
C) void
D) println

Accepted Answer

"void" is the method's return type, indicating that the method returns no value. The other options are not related to the return type of the method, but rather are related to access modifiers, static method type, and a method name.

Question 19

____ is the process the compiler uses to divide your source code into meaningful portions; the message means that the compiler was in the process of analyzing the code when the end of the file was encountered prematurely.
A) Running
B) Debugging
C) Compiling
D) Parsing

Accepted Answer

Parsing is the process of analyzing the source code to determine the structure of the program and its meaning. This error message indicates that the parsing process was not completed because the end of the file was reached before the expected end of a block or statement.

Question 20

In a ____ environment, you can change directories using the cd command. For example, to change to a directory named MyClasses , you type cd MyClasses and press Enter.
A) Windows
B) Java
C) graphical
D) DOS

Accepted Answer

The cd command is used in a command-line interface environment such as DOS or Unix. It is not used in a Windows or graphical environment, and it is not related to Java programming.

Quiz 1: Creating Java Programs

It is best to use the ____ available text editor when writing Java programs.

If a compiler detects a violation of language rules, it refuses to translate the class to ____.

{ public static void main(String[] args) { System.out.println("First Java application") ; } } Given the above code, which item identifies the access specifier?

A(n) ____________________ error occurs when the syntax of the program is correct and the program compiles but produces incorrect results when you execute it.

It is a tradition among programmers that the first program you write in any language produces "____" as its output.

public class First { public static void main(String[] args) { System.out.println("First Java application") ; } } Given the above code, which item identifies that the method will work without instantiating an object of the class?

After a successful compile, you can run the class file on any computer that has a ____.

public class First { public static void main(String[] args) { System.out.println("First Java application") ; } } Given the above code, which item identifies the name of the class?

The ____________________ is also called the Java class library; it contains information about how to use every prewritten Java class, including lists of all the methods you can use with the classes.

____________________ comments are a special case of block comments that are used to generate documentation.

You use an import statement when you want to access a built-in Java class that is contained in a group of classes called a(n) ____________________.

When you run a Java application using the ____ command, do not add the .class extension to the filename.

In programming, named computer memory locations are called ____________________ because they hold values that might vary.

Java contains a class named ____ that allows you to produce dialog boxes.

If you receive an error that states, "Exception in thread 'main' java.lang.NoClassDefFoundError," when you try to execute the application, you probably do not have your ____ set correctly.

Whenever a method requires multiple arguments, the arguments are always separated with ____.

A ____ is an error not detected until the program asks the computer to do something wrong, or even illegal, while executing.

public class First { public static void main(String[] args) { System.out.println("First Java application") ; } } Given the above code, which item identifies the method's return type?

____ is the process the compiler uses to divide your source code into meaningful portions; the message means that the compiler was in the process of analyzing the code when the end of the file was encountered prematurely.

In a ____ environment, you can change directories using the cd command. For example, to change to a directory named MyClasses , you type cd MyClasses and press Enter.