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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.
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Application software refers to programs that make the computer useful to the user.
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Each byte is assigned a unique number known as an address.
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Encapsulation refers to the combining of data and code into a single object.
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Java source files end with the .class extension.
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A procedure is a set of programming language statements that, together, perform a specific task.
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A solid-state drive has no moving parts and operates faster than a traditional disk drive.
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The computer is a tool used by so many professionals that it cannot be easily categorized.
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Without programmers, the users of computers would have no software, and, without software, computers would not be able to do anything.
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The contents of a variable cannot be changed while the program is running.
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Java source files end with the .class extension.
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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.
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While __________ is centered on creating procedures, __________ is centered on creating objects.
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RAM is usually
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The two primary methods of programming in use today are
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Validating the results of a program is important to
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Software refers to
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An object typically hides its data but allows outside code access to
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Variables are
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_________ refers to the physical components that a computer is made of.
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A characteristic of __________ is that only an object's methods are able to directly access and make changes to an object's data.
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Because Java byte code is the same on all computers, compiled Java programs
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A cross between human language and a programming language is called
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Byte code instructions are
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One type of design tool used by programmers when creating a model of a program is
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Keywords are
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Computers can do many different jobs because they are
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A(n) __________ is a software entity that contains data and procedures.
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Application software refers to
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The end of a Java statement is indicated by a __________.
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What is syntax?
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A set of programming language statements that perform a specific task is a(n)
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The central processing unit (CPU) consists of two parts which are
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There are __________ bits in a byte.
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A runtime error is usually the result of
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A(n) __________ is used to write computer programs.
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_________ refers to the physical components that a computer is made of.
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A computer program is
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Which of the following is not part of the programming process?
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Computer programming is
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The original name for Java was
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A program is a sequence of instructions stored in
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Which of the following is not one of the major components of a typical computer system?
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Byte code instructions are
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Which of the following is a software entity that contains data and procedures?
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Each different type of CPU has its own
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Internally, the central processing unit (CPU) consists of two parts which are __________.
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Java was developed by
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Which of the following will compile a program called ReadIt?
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Which of the following will run the compiled program called ReadIt?
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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
javacfollowed 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.
