Chapter 1: Getting Started

Question 1

Intermediate language

Answer 1

Same for all computers, a language that must be translated into a appliance’s specific language.

Question 2

Java byte-code

Answer 2

Java intermediate language used by Java Virtual Machine (JVM)

Question 3

Byte

Answer 3

8 bits

Question 4

Object Oriented Programmin (OOP)

Answer 4

A program that consists of objects that interact with each other by means of actions.

Question 5

Objects

Answer 5

Objects in a program

Question 6

Methods

Answer 6

Actions the objects perform. Also called procedures, functions, and subprograms.

Question 7

Class

Answer 7

A group of objects of the same type and having the same method.

Question 8

Java application program

Answer 8

A class with a method named “main”; a regular java program ran on a computer

Question 9

Applets

Answer 9

A program ran on a web browser

Question 10

Applet viewer

Answer 10

A debugging aid sometimes used to view applets

Question 11

Body of a method is enclosed in…

Answer 11

Braces { }

Question 12

System.out

Answer 12

An object that sends output to screen

Question 13

Println

Answer 13

A method causes quoted string to be output on screen; tells computer to show what is in the parenthesis.

Question 14

System.out.println

Answer 14

Causes quoted string to be output on screen; tells computer to show what is in the parenthesis.

Question 15

Invoking a method

Answer 15

AKA sending a message: Performing and action

Question 16

Argument

Answer 16

Provides information needed by a method to carry out an action. IE, the test to display

Question 17

Writing a program:

Answer 17

Object.MethodName.(arguments)

Question 18

int answer;

Answer 18

Compute a thing with an answer in a whole number

Question 19

Assignment operator

Answer 19

Tells how method will be carried out.

Question 20

+

Answer 20

Can mean add or connect two things

Question 21

High level languages

Answer 21

Easy to use programming languages

Question 22

Machine language (low level language)

Answer 22

The language that the computer directly understands.

Question 23

Compiler

Answer 23

A program that translates (compiles) from high level to a low level language program.

Question 24

Interpreter

Answer 24

A compiler for JVM to machine language that translates one byte at a time

Question 25

Just-In-Time (JIT)

Answer 25

Reads byte-code in chunks and compiles to machine language in chunks as needed.

Question 26

To run a java program

Answer 26

Run compiler to translate into byte-code, then use JVM to translate byte-code to machine language.

Question 27

Source program (source code)

Answer 27

The Java input program to the compiler

Question 28

Object program (object code)

Answer 28

The translated output program that the compiler produces.

Question 29

Class loader

Answer 29

A program that connects each class together so the program will run as a whole. (Normally automatically done)

Question 30

Saved code files should be named

Answer 30

After the class .java

Question 31

To compile java program to byte-code

Answer 31

javac

Question 32

A compiled class extension is

Answer 32

.class

Question 33

To run a Java program in one line

Answer 33

java (name of class with min method)

Question 34

Syntax

Answer 34

Tells what arrangement of words or punctuation is acceptable in a programming language.

Question 35

Semantics

Answer 35

Describes the meaning of things written while following the syntax rules of the programming language.

Question 36

Syntax error

Answer 36

Grammatical mistake in the program

Question 37

Run-time error

Answer 37

An error not detected until the program is ran.

Question 38

Logic error mistake

Answer 38

A mistake in the underlying algorithm. IE it runs, but doesn’t do what you want it to.

Question 39

Identifier

Answer 39

Names of variables in a program. Can’t start with a digit, all characters must be letters, digits, or underscore.

Question 40

Keywords, reservedwords

Answer 40

Words that Java has assigned a predefined meaning, thus cannot be used as a name for a variable.