Some of the language features of Scala

1. All the basic data types are objects, such as the value 1 of the said class is Scala. Int

2. All operators are class member methods, such as 1+2 call 1.+ (2); 0 to 2 call 0.to (2)

3. Access to the array is also via function calls, Array (3)

4. Val,var defines the const reference and the ordinary reference, and the const is the logic

5. There are better types of derivation, eliminating a large number of types of writing

6. The method is supported by any object, this method returns a tuple that contains two objects before and after

7. Create objects from the Factory mode, eliminating the call to new, such as a = List (1, 2)

Some of the language features of Scala