Starting Out with Java Chapter 1 Quiz
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Questions and Answers

Logical errors are mistakes that cause the program to produce erroneous results.

True

The Java Virtual Machine is a program that reads Java byte code instructions and executes them as they are read.

True

Colons are used to indicate the end of a Java statement.

False

Compiled byte code is also called source code.

<p>False</p> Signup and view all the answers

Application software refers to programs that make the computer useful to the user.

<p>True</p> Signup and view all the answers

Each byte is assigned a unique number known as an address.

<p>True</p> Signup and view all the answers

Encapsulation refers to the combining of data and code into a single object.

<p>True</p> Signup and view all the answers

Java source files end with the .class extension.

<p>False</p> Signup and view all the answers

A procedure is a set of programming language statements that, together, perform a specific task.

<p>True</p> Signup and view all the answers

A solid-state drive has no moving parts and operates faster than a traditional disk drive.

<p>True</p> Signup and view all the answers

The computer is a tool used by so many professionals that it cannot be easily categorized.

<p>True</p> Signup and view all the answers

Without programmers, the users of computers would have no software, and, without software, computers would not be able to do anything.

<p>True</p> Signup and view all the answers

The contents of a variable cannot be changed while the program is running.

<p>False</p> Signup and view all the answers

Java source files end with the .class extension.

<p>False</p> Signup and view all the answers

When an object's internal data is hidden from outside code and access to that data is restricted to the object's methods, the data is protected from accidental corruption.

<p>True</p> Signup and view all the answers

While __________ is centered on creating procedures, __________ is centered on creating objects.

<p>Procedural programming, object-oriented programming</p> Signup and view all the answers

RAM is usually

<p>A volatile type of memory, used for temporary storage</p> Signup and view all the answers

The two primary methods of programming in use today are

<p>Procedural and object-oriented</p> Signup and view all the answers

Validating the results of a program is important to

<p>Make sure the program solves the original problem</p> Signup and view all the answers

Software refers to

<p>Programs</p> Signup and view all the answers

An object typically hides its data but allows outside code access to

<p>The methods that operate on the data</p> Signup and view all the answers

Variables are

<p>Symbolic names made up by the programmer that represent memory locations</p> Signup and view all the answers

_________ refers to the physical components that a computer is made of.

<p>Hardware</p> Signup and view all the answers

A characteristic of __________ is that only an object's methods are able to directly access and make changes to an object's data.

<p>Data hiding</p> Signup and view all the answers

Because Java byte code is the same on all computers, compiled Java programs

<p>Are highly portable</p> Signup and view all the answers

A cross between human language and a programming language is called

<p>Pseudocode</p> Signup and view all the answers

Byte code instructions are

<p>Read and interpreted by the JVM</p> Signup and view all the answers

One type of design tool used by programmers when creating a model of a program is

<p>Pseudocode</p> Signup and view all the answers

Keywords are

<p>Words that have a special meaning in the programming language</p> Signup and view all the answers

Computers can do many different jobs because they are

<p>Programmable</p> Signup and view all the answers

A(n) __________ is a software entity that contains data and procedures.

<p>Object</p> Signup and view all the answers

Application software refers to

<p>The programs that make the computer useful to the user</p> Signup and view all the answers

The end of a Java statement is indicated by a __________.

<p>Semicolon (;)</p> Signup and view all the answers

What is syntax?

<p>The rules that must be followed when writing a program</p> Signup and view all the answers

A set of programming language statements that perform a specific task is a(n)

<p>Procedure</p> Signup and view all the answers

The central processing unit (CPU) consists of two parts which are

<p>The control unit and the arithmetic and logic unit (ALU)</p> Signup and view all the answers

There are __________ bits in a byte.

<p>8</p> Signup and view all the answers

A runtime error is usually the result of

<p>A logical error</p> Signup and view all the answers

A(n) __________ is used to write computer programs.

<p>Programming language</p> Signup and view all the answers

_________ refers to the physical components that a computer is made of.

<p>Software</p> Signup and view all the answers

A computer program is

<p>A set of instructions that allows the computer to solve a problem or perform a task</p> Signup and view all the answers

Which of the following is not part of the programming process?

<p>All of these are parts of the programming process</p> Signup and view all the answers

Computer programming is

<p>Both of the above</p> Signup and view all the answers

The original name for Java was

<p>Oak</p> Signup and view all the answers

A program is a sequence of instructions stored in

<p>The computer's memory</p> Signup and view all the answers

Which of the following is not one of the major components of a typical computer system?

<p>All of the above are major components</p> Signup and view all the answers

Byte code instructions are

<p>Read and interpreted by the JVM</p> Signup and view all the answers

Which of the following is a software entity that contains data and procedures?

<p>An object</p> Signup and view all the answers

Each different type of CPU has its own

<p>Machine language</p> Signup and view all the answers

Internally, the central processing unit (CPU) consists of two parts which are __________.

<p>The control unit and the arithmetic/logic unit (ALU)</p> Signup and view all the answers

Java was developed by

<p>Sun Microsystems</p> Signup and view all the answers

Which of the following will compile a program called ReadIt?

<p>javac ReadIt.java</p> Signup and view all the answers

Which of the following will run the compiled program called ReadIt?

<p>java ReadIt</p> Signup and view all the answers

Study Notes

Introduction to Java and Computers

  • Logical errors produce incorrect results in programs.
  • The Java Virtual Machine (JVM) reads and executes Java byte code instructions.
  • Java statements end with a semicolon (;), not a colon.
  • Compiled byte code differs from source code; it is the machine-readable format after Java code compilation.
  • Application software enables users to perform tasks and utilize the computer effectively.
  • Each byte in memory has a unique identifier called an address.

Object-Oriented Programming Concepts

  • Encapsulation combines data and methods into a single object, protecting the data from outside access.
  • Java source files end with the .java extension, not .class.
  • A procedure is a collection of programming statements designed to perform a specific task.
  • Objects manage their data through methods, allowing controlled access.

Computer Components and Operations

  • Solid-state drives (SSDs) outperform traditional hard drives and lack moving parts.
  • Programmers create software, which is essential for computers to function.
  • A variable is a symbolic name representing a memory location with changeable contents.

Programming Fundamentals

  • Procedural programming focuses on creating procedures; object-oriented programming emphasizes creating objects.
  • Random Access Memory (RAM) is a volatile memory used for temporary storage.
  • Programming consists of defining problems, modeling, coding, and debugging.

Programming Syntax and Structure

  • Syntax encompasses the rules governing program writing.
  • Byte code instructions are interpreted by the JVM and serve as a universal programming format.
  • Keywords in programming have predefined meanings that dictate the syntax.

Central Processing Unit (CPU)

  • The CPU consists of two main components: the control unit and the arithmetic/logic unit (ALU).
  • Each CPU type has its own machine language, essential for executing instructions.

Java and its Development

  • Java originated as a project named Oak, initiated by Sun Microsystems.
  • To compile a Java program, use the command javac followed by the filename (e.g., javac ReadIt.java).

Understanding Software and Hardware

  • Hardware refers to the physical components of a computer system.
  • Software is a term for programs that carry out tasks on computers.
  • An object in programming is defined as a software entity that contains both data and procedures.

Important Programming Concepts

  • Application software refers to programs that make computers useful to users.
  • Byte code created from Java programs is highly portable across different operating systems.
  • A runtime error often results from logical errors, manifesting when the program runs.

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Description

Test your knowledge of the basics of computers and Java programming with this true/false quiz based on Chapter 1 of 'Starting Out with Java'. This quiz covers essential concepts such as logical errors, the Java Virtual Machine, and the distinction between bytecode and source code.

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