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Runestore - Unit 1
| Term | Definition |
|---|---|
| compiler | software the translates the Java source code into Java class file which can be run on the computer |
| compiler error | an error found during compilation |
| syntax error | an error found during compilation |
| compilation | the process of translating source code written in a high-level programming language into a lower-level language, such as machine code, that can be executed by a computer |
| main method | where execution starts a program |
| variable | a name associated with a memory location in the computer |
| initializing a variable | the first time you set the value of a variable |
| Declare a variable | specifying the name and type for a variable. This sets aside memory for a variable of that type and associates the name with that memory location |
| data type | determines the size of memory reserved for a variable. Examples: int, double, boolean, char, String |
| integer | a whole number like 2 or -3 |
| boolean | an expression that is either true or false |
| camel case | one way to create a variable name by appending several words together and uppercasing the first letter of each word after the first word. Example: myScore |
| casting a variable | changing the type of a variable using type name |
| operator | common mathematical symbols such as + for addition and * for multiplication |
| compound assignment | operators like x++ which means x = x + 1 or x +=y which means x = x + y |
| shortcut operators | operators like x++ which means x = x + 1 or x +=y which means x = x + y |
| modulo | the % operator which returns the remainder from one number divided by another |
| arithmetic expressions | a sequence of operands and operators that describes a calculation to be performed. Example: 3 * (2 + x) |
| operator precedence | some operations are done before others. Example *, /, % have precedence over + and - unless parentheses are used |
| boolean | used to declare a variable that can only have the value of true or false |
| double | used to declare a variable of type that can store numbers with decimals |
| int | used to declare a variable of a type that can store whole numbers(number without decimals |
| String | used to declare variable which stores a sequence of characters or text |
| System.out.print() | Used to print output to the user |
| System.out.println() | used to print output to the user followed by a newline to the user |
| = | used for assignment to a variable |
| +, -, *, /,% | arithmetic operators |
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