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