Java Syntax
Contents:
Primitive Data Types
Character Escape Sequences
Operators
Modifiers
Reserved Words
Java Documentation Comment Syntax
Primitive Data Types
Java supports a complete set of primitive data types, listed in Table 13.1. In Java, the size of each type is defined by the language, and is not implementation dependent, as it is in C.
| Min Value | ||||
|---|---|---|---|---|
| Type | Contains | Default | Size | Max Value |
| boolean | true or false
| false
| bit | |
| char | Unicode character | \u0000
| bits | \u0000
|
\uFFFF
| ||||
| byte | signed integer | 0
| bits | -128 |
| short | signed integer | 0
| bits | -32768 |
| int | signed integer | 0
| bits | -2147483648 |
| long | signed integer | 0
| bits | -9223372036854775808 |
| float | IEEE 754 | 0.0
| bits | +/-3.40282347E+38 |
| floating-point | +/-1.40239846E-45 | |||
| double | IEEE 754 | 0.0
| bits | +/-1.79769313486231570E+308 |
| floating-point | +/-4.94065645841246544E-324 |