Group not variables : the length of the immutable, the content of the variable Array
Variable Array : length array are variable ArrayBuffer
Array definition Methods:
The value
Assignment
Note that the array of different values and assignment of java, java use [], is used Scala ()
Array variable
We first need to import the package
Add elements + =
Removing elements - =
Between the array splice ++ =
To delete an array - =
Add the element at the specified position insert
Delete the specified location element remove
Delete element at index 1
Delete the index from the beginning two elements
To delete an element from the beginning of the last element trimEnd
Deduplication distinct
An array of inverted reverse
Array taken: Slice (from, an until) (left and right open and closed)
