So far, I’ve only talked about single values, but in programming, you often have to work with large collections of values. For this, we have many data structures that are built into the language. These are similar for Java, Groovy, Scala, and even JavaScript.
Arrays
An array is a fixed size collection of data values.
You declare an array type in Java by appending [] to the type. For example, an array of ints is defined as int[].
1 int[] vampireAges = new int[10]; // ten vampires
Setting and accessing the values in an array uses the same square bracket syntax, such as the following: ...
