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Arguments:
A data item specified in a method call.
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Array:
- A collection of data items, all of the same type, in which each item's
- position is uniquely designated by an integer.
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Binary operator:
An operator that has two arguments.
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Bit:
Smallest unit of information in a computer.
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Block:
In the Java programming language, any code between matching braces. Example: { x = 1; }.
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Boolean:
An expression that can have only the values of true or false.
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Switch / case:
Switch: A Java keyword used to evaluate a variable that can later be matched with a value specified by the case keyword in order to execute a group of statements.
A Java keyword that defines a group of statements to begin executing if a value specified matches the value defined by a preceding switch keyword. i.e a part of a switch statement.
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Bytecode:
The code in which java .class files are written and the JWM understands.
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Casting:
Explicit conversion from one data type to another.
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Char:
A Java keyword used to declare a variable of type character.
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Class:
A blueprint for an object. Contains definitions of the variable used, constructors for creating objects of this class and methods.
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Compiler:
A program that translates our source code into code that can be executed by the computer.
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Constructor:
A pseudo-method that creates an object. In the Java programming language, constructors are instance methods with the same name as their class. Constructors are invoked using the new keyword.
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Declaration:
A statement that establishes an identifier and its type.
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Encapsulation:
Localization of functionality within a module.
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Extends:
A keyword that indicates you will inherit from a previously defined class.
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Field:
A data member of a class.
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Import:
A keyword used at the beginning of a file to tell the JVM where to find packages and classes.
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Inheritance:
The concept of classes automatically containing the variables and methods defined in a Superclass.
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JVM:
Java Virtual Machine - the software that runs our code.
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Literal:
An expression that does not need to be evaluated, like 7.
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Method:
A function defined in a class.
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Object:
A principal building block of an object oriented programming. Each object is a programming unit containing fields, constructors and methods.
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Package:
A group of related classes.
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Pixel:
The picture element on a display area, such as a monitor screen or printed page. Each pixel is individually accessible.
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Public vs. private access:
Public: A Java keyword used in a method or variable declaration. It signifies that the method or variable can be accessed by elements residing in other classes.
Private: A Java keyword used in a method or variable declaration. It signifies that the method or variable can only be accessed by other elements of its class.
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Subclass:
A class that is derived from a given class.
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Superclass:
A class from which another class is derived.
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CSS:
A markup language for separating style from content.
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Canvas element:
An HTML 5 element for drawing 2 and 3d.
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document.getElementById();:
A javascript method for getting a programmatic handle on elements in the Webpage.
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Recursion:
A method that can call itself.
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