Scala programming Entry 1

Scala can be executed as an interpreter, but it is not actually an interpreter. What actually happens is that the input content is quickly compiled into a bytecode, and then the bytecode is handed over to the Java Virtual Machine for execution, so you can call it repl

Scala Development Environment on Windows to build as shown in Baidu experience: http://jingyan.baidu.com/article/5552ef471a1cd2518ffbc925.html

Run

Scala> 8*5 + 2

Result:

Res0: Int = 42

The answer is named res0. You can use this name in subsequent operations:

Scala> res0 * 0.5

Res1. double = 21.0

Scala programming Entry 1