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Probably not. It would be useful to have an organized way of reading and storing the values.

Picture of an Array


An array is an object that is used to store a list of values. It is made out of a contiguous block of memory that is divided into a number of cells. Each cell holds a value, and all the values are of the same type. Sometimes the cells of an array are called slots. In the example array pictured at right, each cell holds an int.

The name of this array is data. The cells are indexed 0 through 9. Each cell can be accessed by using its index. For example, data[0] is the cell which is indexed by zero (which contains the value 23). data[5] is the cell which is indexed by 5 (which contains the value 14).


Sometimes the index is called a subscript. The expression data[5] is usually pronounced "data-sub-five" as if it were an expression from mathematics: data5.

The value stored in a cell of an array is sometimes called an element of the array. An array has a fixed number of cells. The values in the cells (the elements) can be changed.


What value is in data[7] ?