[SOLVED] Check command

[Azndaddy]

Hi, how code is needed to check an input of command so that, when the command is entered wrong it would return null;

example: on this class

PHP Code:

public class Quit extends Commands
{
    public Quit(Editor editor)
    {
        super("quit", editor);    
    }
    
    public void execute()
    {
        System.out.println("Bye!");
        System.exit(0);
    }
} 


Help would be great

Thanks

[Eranga]

If your command is a string, I think it is "Bye!", simply use a boolean variable, with comparing Strings. It the variable is true, do the process you want. If it is false do nothing.

[CaptainMorgan]

Azndaddy, what you're referring to is basic programming logic, fundamentally in the if/then area of logic. This will be a common task throughout your programming career and in this case, because the code you provided is a little obscure, is a task only you will be able to complete.

Post more general code and we can assist. But basically, it goes something like this:

Code:

...
if (command != desired) {
  // do something to imply wrong command
} else {
  // do the thing you were meaning to do
}
...

[Azndaddy]

yeah i know its the basic, but it been too long since i touched java programming. i'll see what i can do.

thanks for the help