Computer Science Principles Unit 5

A function specified as part of an event listener; it is written by the programmer but called by the system as the result of an event trigger.

• Callback function

• Event

• Event-driven program

• Event handling

An action that causes something to happen.

• Event listener

• Event handling

• Debugging

• Event

A program designed to run blocks of code or functions in response to specified events (e.g. a mouse click)

• Event handling

• Event-driven program

• Event listener

• User programming

An overarching term for the coding tasks involved in making a program respond to events by triggering functions.

• Event handling

• Event listerner

• Event

• User Interface

A command that can be set up to trigger a function when a particular type of event occurs on a particular UI element.

• Event listener

• Event handling

• Event

• Callback function

on-screen objects, like buttons, images, text boxes, pull down menus, screens and so on

• Event listener

• Event handling

• User Interface

• UI Elements

The visual elements of a program through which a user controls or communicates with the application.

• Expression

• UI Elements

• User Interface

• Variable

Finding and fixing problems in an algorithm or program.

• Debugging

• Problem solving function

• Event handling

• Callback function

All values in a programming language have a "type" - such as a Number, Boolean, or String - that dictates how the computer will interpret it. For example 7+5 is interpreted differently from "7"+"5"

• Expresion

• Data type

• Variable

• Event

Any valid unit of code that resolves to a value.

• Variable

• Expression

• Data Type

• Local Variable