Use of Static Methods in Java Assignment Help

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Use of Static Methods in Java:

Static (that is, class) methods are also specified using the modifier static. Static methods are allowed only simple name access to static (not instance) variables. One typical use of a static method would occur with the scenario described previously, where a class variable describes the number of objects of the class that have been created. A static method could be used to increment this counter. You will also find static methods in the Java libraries, where they carry out general functions not associated with objects. For example, the static method max within the class Math returns the greater of its two arguments. The method header for one version of max looks like this: 

public static double max (double a, double b)

Thus the code:

double val = Math.max(Math.PI, 4.0);

determines the greater of its two arguments and places the result within the double variable val.

The main method

Remember that when we write executable programs we always have a main method, which is where the execution of the program begins. You will have seen a header that looks similar to this:

public static void main (String []args)

{

// main code

}

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