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36 Cards in this Set

  • Front
  • Back
BIOS
Basic Input/Output System. Software/interface that boots computer and controls devices. Inputs are mouse + keyboard; outputs are printer + monitor.
WYSIWYG
What you see is what you get. When you use this type of editor, the page that you create is the page that appears on the browser. You do not need to use html code.
GUI
Graphical User Interface. The use of images that allows the user to navigate through the program. It is important that the program is usable, and the GUI helps the user interact with the program.
RAM
Random-access Memory. This is a temporary form of memory, as data is stored as you use it. When you restart or shut down the computer, RAM is deleted.
Peripherals
Mice, keyboard, monitors. These are the externals of the computer. Peripherals allow the user to interact with the computer.
One "meg" (of RAM) is approximately one million bytes. (T or F).
True
Peripheral devices include RAM. (T or F).
False
The CPU fetches program instructions from RAM. (T or F).
True
When a system "hangs" or crashes, the contents of its ROM are lost. (T or F).
False
When a program is running, it can changes the contents of ROM. (T or F).
False
What are the different byte measurements?
1 KB = 2^10 = 1024
1 MB = 2^20 = 1024 KB
1 GB = 2^30 = 1024 MB
What factors should you consider in determining if a program is efficient?
You consider the time and cost it takes to run. Also want to make sure it does not use up too much memory, disk space, or processor speed.
What are editor, compiler, and debugger used for?
Editor allows programmer to edit/write source code. Compiler compiles source code into object code. Debugger traces program to search for bugs.
How is a compiler different from an interpreter?
A compiler compiles source code into object code, while the interpreter reads code to make it understandable to the user.
Define IDE versus JDK.
Integrated Development Environment (GUI layer) vs. Java Development Kit (text tools for Java). Install JDK before IDE.
What is source code vs. byte code?
Source code is readable by the programmer, while byte code is a machine language.
What is an applet?
An applet displays what the programmer writes. It is viewed as GUI, and easy to understand. It is embedded in the browser.
Define inheritance.
This is when a subclass extends a superclass, or modifies a certain aspect of the original code. Able to use "call" methods + constructors of superclass.
What is a field?
Declares what image is displayed. The variables exist in field.
What is a constructor?
Name of image is displayed. Define and initialize variable.
What is a method?
Identifies behaviors/attributes of objects.
Why are fields usually private?
So that the field is only visible to the original class. It is only used by that class, not others.
Define class vs. object.
A class is a blueprint of the possible attributes/behaviors of an object, while the object defines specific behaviors. Also, the object is created while the program is running.
What is the significance of the asterisk?
Imports wildcard.
Names of fields start with a lower case letter. (T or F).
True
Names of fields start with an upper case letter. (T or F).
False
Names of fields use all caps. (T or F).
False
Names of classes usually start with a capital letter. (T or F).
True
Names of all methods usually start with a capital letter. (T or F).
False
A field in a class may be public or private, but usually all fields are declared private. (T or F).
True
Declarations of fields must be placed at the top of a class, before all the constructors and methods. (T or F).
False
A local variable is declared neither public nor private. (T or F).
True
Declarations of local variables may be placed anywhere inside a constructor's or method's code, not necessarily at the top. (T or F).
True
Several variables of the same type may be declared in the same statement. (T or F).
True
A local variable may be initialized in one method and used in another method. (T or F).
False
What are the four primitive data types?
char, boolean, double, int