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   ► KBProgrammingJavaStandard JavaOOP   Print This     
 
Java OOP:
Java Member Field
 
Posted 11 years ago on 1/18/2009
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KB101756

General Info: Member Field

Also known as a Class Field.

A class variable defined with a specific class visibility, usually private visibility. A member property is different than a member field. A member property uses a member field to store values through accessor methods (getters and setters). For example, it is common to use a private member field to store the current value of a property. The current values of all the class member fields is the current state of the object.

Languages Focus: Member Field

What modifiers apply to member fields, if any? Typical member field modifiers include scope modifiers (private, protected, etc.) and read-only. Can you initialize the value of a member field when declared ensuring a default value?

Java Member Field

In Java, you can set the scope of a field member to public, protected, or private. Additional modifiers are static, abstract, final (assign only once), strictfp (strict floating point values) transient (do not save to persistent storage), and volatile (all threads see same value).

You can initialize member fields as in:

int age = 0;

More Info

Definition:  Member Field

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