[Java] I have problem to understand the arrays ?

Question

What is arrays and what it using for ?
Can anyone explain it using some examples.

Answer 1

Also imagine you are making a chess game for 8 by 8 board. You would use 2 dimensional array to track the board pieces. It would be the most wise data type to use

Answer 2

It is a fixed size of same types, not sure what you don't understand

Answer 3

Imagine you want to store 20 numbers, Strings or whatever.
Using 20 variables is possible but too much work.

Arrays are like containers/lists with a fixed size.

int myArray[] = new int[20]
Now you can use this array to store your 20 values.
And you can do many other stuff like sorting, searching for a value...

Here is a good tutorial with examples:

http://tutorials.jenkov.com/java/arrays.html