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Exam 1: Creating Java Programs

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Question 31

True/False

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System software is used for tasks such as word processing, calculations and playing games.

A) True
B) False

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Question 32

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____ refers to the hiding of data and methods within an object.

A) Instance
B) Inheritance
C) Passed
D) Encapsulation

E) A) and B)
F) A) and C)

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Question 33

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Line comments start with ____.

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

Regarding code layout, what would be an equally valid and legal way to write the following Java code: public static void main(String[] args) { System.out.println("First Java application"); }

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.

public class Hello { public static void main(String[] args) { _________________________ } { Using the given code, write the statement in the main() method body that will produce the output "Hello to all!".

Although not a requirement, it is Java standard that class identifiers begin with an uppercase letter and use other uppercase letters to improve readability.

When you define a Java class using an identifier, what are the requirements you need to know?

Match each term with the correct statement below. -Allow you to assign intuitive names to areas of computer memory

Match each term with the correct statement below. -A GUI object resembling a window in which you can place messages you want to display

public class FindMyErrors { public static void main(String[] args) { System.out.println("My application with errors) } Given the above code, identify three separate syntax errors.

A program written in ____ is the most basic circuitry-level language.

Explain the purpose of arguments and why it is necessary to pass arguments to a method.

Match each term with the correct statement below. -Translates an entire program before carrying out the statement

If you modify a class, what are the steps you must take to see your changes in the executing program?

Match each term with the correct statement below. -Any combination of nonprinting characters

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

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.