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Cards In This Set
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Syntax
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Formal rules governing how valid instructions are written in a programming language (exactly what combo of letters, numbers and symbols can be used)
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Semantics
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Set of rules that determines the meaning of instructions written in a programming language
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Metalanguage
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Language of a language, it determines the rules used to write the syntax for another language.
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Reserved word
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Word that has a specific, predefined meaning in Java. IE public class
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Identifiers
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Words that we define in Java. It is a name associated with a package, class, method or field and used to refer to that element.
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Method
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A subprogram in Java
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Field
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A named place in memory that holds data
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What are some of the rules about identifiers?
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Case-sensitive
Can't start with a digit No whitespace allowed Hyphen is a math symbol Only $ and _ allowed as special symbols No reserved words |
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Types of data
Standard |
Automatically avialable for use in every Java program
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Types of data
Primitive |
Any of the built-in types that represent integral, real, character or Boolean values.
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Character set (char)
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A list of letters, digits and symbols with corresponding binary representation in the computer.
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Collating sequence
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The ordering of characters with respect to one another within a character set.
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Java Object
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An entity containing data in fields, with associated operations.
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Class
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This is the pattern for an object to follow, it contains fields and methods
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Method
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A subprogram that defines one aspect of the BEHAVIOR of a class.
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