Java Arrays
An array is a sequence of zero or more elements of the same primitive or reference type, each of which is accessed by a numeric index (or offset); numbering of the elements starts at zero.Three stages are required to make an array:
(1) declare the name of the array
(2) create the array
(3) initialize the values of the array.
| Code | Meaning |
|---|---|
| int[] ia; | (1) an array of int named ia is declared |
| ia = new int[3]; | (2) the array of length 3 is created |
| ia[0]=17; ia[1]=5; ia[2]=8; | (3) the array is initialized with values |
| int[] ib = new int[3]; | (1)(2) an array ib is declared and created |
| int[] ic = {17, 5, 8}; | (1)(2)(3) an array is declared, created, and initialized with values |
The example programs to the left explain in detail the summary above.