Explanation Of Variables
Submitted by Akimoko on Sun, 2006-06-04 08:29 | ||
Ok , i used to get alot of people saying to me , what are variables what do they do? so i decided this explanation worked best. the best way to think of memory on a computer is as a set of storage bins. when you write a computer program you reserve some storage bins, and you give each storage bin a name, you also say which type of thing can go into the storage bin, the c++ term for such a storage bin is a variable Side Note : Variables can only hold one thing at a time Just like normal storage bins you arent allowed to put two different types of things into it , for example in real life , you arent allowed to put plastic in a glass storage bin. The Types of Data you can put in a variable : 1. String - Simply just a bunch of letters,numbers and symbols strung together, e.g. a1£ 2. Integers - Positive whole numbers, negative whole numbers, and 0. 3. Floating Points Numbers - Numbers with a decimal place e.g. 6.12 Side Note : An Easy way to remember FPN ( floating points numbers ) is that remember the points means decimal point. End Notes : hope this helped someone out there lol ill soon add to this and show you how to put all the types of data into variables and how to use them. forums: |
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