static keyword

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wasim akram

static keyword
1 Answer(s) a year and 11 months ago
Posted in : Java Beginners

please give some detail about Static keyword.

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June 29, 2011 at 10:30 AM

Static Variables

Static variables are class variables that are shared by all instance of class ..

1)It is a variable which belongs to the class and not to object(instance).

2)Static variables are initialized only once , at the start of the execution . These variables will be initialized first, before the initialization of any instance variables.

3)A single copy to be shared by all instances of the class.

4)A static variable can be accessed directly by the class name and doesnÃ¢â?¬â?¢t need any object.

Static Methods

Static method is the method which belongs to the class and not to the object(instance).

1)A static method can access only static data. It can not access non-static data (instance variables).

2)A static method can call only other static methods and can not call a non-static method from it.

3)A static method can be accessed directly by the class name and doesnÃ¢â?¬â?¢t need any object.

4)A static method cannot refer to "this" or "super" keywords in anyway.

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