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Arrays

Arrays are a very useful data-type in all programming languages. Although their syntax and implementation (and therefore efficiency) vary between programming languages, the general tools and methods for manipulating them are very similar.

Java:

Arrays in java must be of fixed length.
A good resource for java arrays online is Java Language Specification[java.sun.com]

Creating an array

Last updated at 11:48 AM on Wednesday 5th September, 2007 by Administrator


To create an int array of length 4:

int[] array = new int[4];

Now to populate the array:

for(int i = 0; i < array.length; i++)
{
  array[i] = i;
}

However if we wish to populate an array with fixed values, it can be hardcoded:

int[] array = {0, 1, 2, 3};

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