scala编程系列(9)-scala基本类型

scala基本类型包括如下：

分别使用这些变量

scala> val byte:Byte = 123
byte: Byte = 123

scala> val short:Short = 123
short: Short = 123

scala> val int:Int = 123
int: Int = 123

scala> val long:LOng= 123
long: LOng= 123

scala> val char:Char = 123
char: Char = {

scala> val char:Char = '123'
:1: error: unclosed character literal
       val char:Char = '123'
                       ^
:1: error: unclosed character literal
       val char:Char = '123'
                           ^

scala> val char:Char = '1'
char: Char = 1

scala> val char:String = 123
:7: error: type mismatch;
 found   : Int(123)
 required: String
       val char:String = 123
                         ^

scala> val char:String = '123'
:1: error: unclosed character literal
       val char:String = '123'
                         ^
:1: error: unclosed character literal
       val char:String = '123'
                             ^

scala> val char:String = "123"
char: String = 123

scala> val float:Float = 123
float: Float = 123.0

scala> val double:Double = 123
double: Double = 123.0

scala> val bool:Boolean = 123
:7: error: type mismatch;
 found   : Int(123)
 required: Boolean
       val bool:Boolean = 123
                          ^

scala> val bool:Boolean = true
bool: Boolean = true