Java Ch 2 Key Terms
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Created by:
tcarteronw on May 12, 2011
Subjects:
computer science, technology, programming
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20 terms
Terms | Definitions |
|---|---|
 Assignment operator: | The = (the equals sign). Assigns a value to an identifier. |
| Binary operator: | An operator that has two operands. |
| Cast operator: | Used for explicit type conversion |
| Computer program: | A sequence of statements whose objective is to accomplish a task. |
| Data type: | A set of values together with a set of operations. |
| Identifier: | A Java identifier consists of letters, digits, the underscore character ( _), and the dollar sign ($), and must begin with a letter, underscore, or the dollar sign. |
| Implicit type coercion: | When a value of one data type is automatically changed to another data type. |
| Mixed expression: | An expression that has operands of different data types. |
| Named constant: | A memory location whose content is not allowed to change during program execution. |
| Operator precedence rules: | Determine the order in which operations are performed to evaluate an expression. |
| Programming: | A process of planning and creating a program. |
| Programming language: | A set of rules, symbols, and special words. |
| Semantic rules: | determine the meaning of instructions in a programming language. |
| Source code: | The combination of the import statements and the program statements |
| Source file: | A file containing the source code, having the file extension .java. |
| Syntax rules: | determine the validity of instructions in a programming language. |
| Token: | The smallest individual unit of a program written in any programming language. |
| Unary operator: | An operator that has only one operand. |
| Variable: | A memory location whose content may change during program execution. |
| console.nextDouble(): | retrieves that floating-point number, if the value of this expression is that floating-point number. |
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