1. B.Sc. Multimedia ComputingMultimedia Authoring Using Arrays in Flash

2. Agenda Definition of an Array Why Arrays are Useful Data Structures Declaring Arrays in Flash Using Arrays B.Sc. Multimedia ComputingMultimedia Authoring

3. How to Store Five Numbers Use individual variables for each number stored: var numberOne:number var numberTwo:number var numberThree:number var numberFour:number var numberFive:number messy - have to process as individual items rather than as a collection of grouped items. Solution - use an Array - contiguous data storage B.Sc. Multimedia ComputingMultimedia Authoring

4. Arrays and Data Storage B.Sc. Multimedia ComputingMultimedia Authoring 15 95 14 70 23 Elements Size = 5 The value stored at array element number 2 is 14 Array element numbering starts at 0

5. Arrays and Data Storage B.Sc. Multimedia ComputingMultimedia Authoring 15 23 14 70 5 Array of numbers (integers) Gibson Fender Punk Martin Array of strings Les Paul

6. Declaring Arrays in Flash B.Sc. Multimedia ComputingMultimedia Authoring // create a new array var numberArray = new Array(); // store the numbers into the array // 5 95 14 70 23 numberArray[0] = 15; numberArray[1] = 95; numberArray[2] = 14; numberArray[3] = 70; numberArray[4] = 23;

7. Looping Through an Array // total the numbers stored in the number array var index:Number; for (index = 0; index <= 4; index = index + 1){ _root.totalValue = totalValue + numberArray[index] } totalText.text = totalValue; B.Sc. Multimedia ComputingMultimedia Authoring