A1-Getting Started Text + Console Applications & Output

Binary

Binary

A number system where only the numbers zero and one are used

Byte Code

Code that is understood by a JVM

Class Files

Files that contain byte code and have a .class extension

Compiler

A program that checks your code and gives you errors if there are problems with it. If there are no problems with your code, the compiler will translate your code into another language.

Compiling

The process of converting code written in one language to another

Console

A text only area where the user and the program interact

Console Application

A program that interacts with the user through a console

Debugger

A program that allows the programmer to monitor and manipulate data while a program is running

Debugging

The act of hunting down errors and removing them from a program

Editor

A program used for writing code

Executing

Running a program

Garbage Collector

A program that monitors created data and automatically deletes it when it is no longer being used by a program

Graphical Application

A program that has a GUI

Graphical User Interface (GUI)

An interface that consists of both text and not-text graphical output

High Level Programming Languages

Languages that take more work for the computer to decode, but are easier to program in

Integrated Development Environment (IDE)

A single program that contains an editor, compiler and debugger

Java Development Kit (JDK)

This program contains the tools needed to build and run Java programs. Contains a JVM and JRE.

Java File

Contains code written in Java and has a .java extension

Java Runtime Environment (JRE)

A program that allows the computer to run java applications

Java Virtual Machine (JVM)

A program in the JRE that translates bytecode into code that can run on the local machine. The JVM contains the garbage collector.

Logic Error

When a program produces the incorrect output due to a flaw in programming

Low Level Programming Languages

Languages that need few translations to reach machine code, but they tend to be more difficult to program in

Machine Code

A language that the computer understands and consists of commands written only in binary

Memory Leak

A problem where data gets created, but never deleted

Object Oriented Languages

Languages that allow the programmer to create “Objects” that store custom sets of data and can perform actions involving that data

Operating System

A program that works as a middle man for communication between the user/other programs and the hardware

Platform Dependent Programs

Programs that are limited on what computers they will work on based on hardware/software requirements

Platform Independent Programs

Programs that work on virtually any machine no matter what hardware or software it has

Program

A set of commands written in a computer language to perform a task

Programmer

The person that writes a program

Programming

The act of writing a program in a computer language

Programming Language

A structured language that allows a programmer to communicate with the computer through the commands that exist in the programming language

Runtime Errors

Errors that occur when the program is being executed

Syntax Errors

Errors with the program code that prevents the compiler from being able to build the program

\”

Displays a “

\\

Displays a \

\t

Inserts a tab

\n

Moves the cursor to the beginning of the next line

//

Everything to the right of the comment symbol is a comment

/*

Everything to the right of the comment symbol and below it is a comment until the end of the multi-line comment is reached.

*/

Ends a multi-line comment

Comments

Text that is ignored by the compiler.

Escape Sequences

Special commands that can be used inside of double quotes.

Skeleton Code

A basic starting point for a given programming task.