Answer Posted / mohammad faisal

The most common answer is: it would be the class name
having the main() method.

If you are using multiple classes in a single file than it
doesn't matter how much the number of classes.
But there is a problem for begienners that by what name
should they save the file.

There is something interesting to java:
You can save the program by any name. i.e.,
Let your program is:
class a
{
}
class b
{
}
class c
{
public static void main(String args[])
{
}
}

Now save the file as Amazing_Example.java

Compile the file as:
c:\>javac Amazing_Example.java
c:\>
This compilation is successfull.
Now you can run the program using the name of class having
the main() method. As in our example class c has the main()
method.
i.e.,
c:\>java c
c:\>//Here will be the output of your code.

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