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9 Cards in this Set
- Front
- Back
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What is a stream?
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An object that either delivers or takes data to or from a source.
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What is a text file and its purpose?
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A file which can be read and wrote to using an editor; they are designed for storing data in text format permenantly until modified.
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What is an icon and how is it used in Java?
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A picture which can be used in Java as an ImageIcon to convert a picture file in to a java Swing icon.
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What is a constructor?
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A constructor must have the same name as the class to which it belongs.
A method that is called when an object of the class is created using new. Constructors are used to initialize objects. |
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What is a default constructor?
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A constructor with no parameters.
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What is a wrapper class?
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A class used to produce objects of the class of each primitive type. Also contains a library for each primitive type with useful static methods such as parseInt.
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What is a Java package?
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A collection of classes that have been grouped together into a directory.
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What is stub code?
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A simplified version of a method that is good enough for testing to be sure that it is correct.
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Breakdown the meaning of public static void main(String[] args)
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public entails that it is open to access from other classes
static method can be invoked without using any object main is a method that takes an array of String values as an argument. |
