Showing posts with label java variable. Show all posts
Showing posts with label java variable. Show all posts
Thursday, July 25, 2013

Variables with a Fixed Set of Integer Values

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You will usually would like variables which will have values solely from a predefined fastened set. for instance, suppose you wish to outl...
Wednesday, July 24, 2013

Fixing the Value of a Variable

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Sometimes you will declare and initialize a variable with a value that should never change. For example: int feet_per_yard = 3; doub...

Declaring Floating-Point Variables

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You declare floating-point variables in a similar way to what you’ve already used for integers. You can declare and initialize a variable...

Declaring Integer Variables

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As you saw earlier, you can declare a variable of type long with the statement: long bigOne; This statement is a declaration for t...

Integer Data Types

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There are four types of variables that you can use to store integer data . All of these are signed; that is,they can store both negative a...

Variables and Types

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As I mentioned earlier, each variable that you declare can store values only of a type consistent with the data type of that variable. You...

Variable Names and Unicode

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Even though you may be entering your Java programs in an environment that stores ASCII characters,all Java source code is in Unicode. Alt...
Tuesday, July 23, 2013

Naming Your Variables

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The name that you choose for a variable, or indeed the name that you choose for anything in Java, is called an identifier. An identifier c...

Data and Variables

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A variable is a named piece of memory that you use to store information in your Java program a piece of data of some description. Each na...