Defining a method in Java
Methods are considered as behavior in a Java Program.
Any changes to variables or any other objects in class are done using methods.
Structure of a method.
access-specifier return-type method-name(parameters)
Simple example of a method:
public void sayHello()
System.out.println(“Hello Tom !!”);
A method can have one or more parameters.
Example consider a method to add two numbers
public void add(int num1,int num2)
A method with return type void means that the method will not return anything, but if a method requires to return back something it will have return type other than void.
And a point to remember here is that it will require to include a return statement at the end of the method.
Or in simple words. IF A METHOD RETURN SOMETHING, LAST STATEMENT IN THE METHOD WILL be the return statement.
Example of a method with return statement
public int square(int num)
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[Source : http://www.javawithz.in/2013/10/methods.html ]