Android Programming for Beginners by Unknown

Author:Unknown
Language: eng
Format: mobi, pdf
Publisher: Packt Publishing

The only way to avoid this problem is to know the rule. The rule states that arrays start at 0 and go up to their length -1. We can also use clear readable code where it is easy to evaluate what we have done and spot problems more easily.

ArrayLists

ArrayList is like a regular Java array on steroids. It overcomes some of the shortfalls of arrays such as having to predetermine its size. It adds some really useful methods to make its data easy to manage, and it uses an enhanced version of a for loop, which is clearer to use than a regular for loop.

Let's look at some code that uses ArrayList:

// Declare a new ArrayList called myList to hold int variables ArrayList<int> myList; // Initialize the myList ready for use myList = new ArrayList<int>();

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