bryandh / genericmenu

Java library that provides a generic console menu that can easily be manipulated

genericmenu

This simple tool allows you to easily create a generic console menu.

usage

All you need to make use of this tool is explained in the following code example:

GenericMenu genericMenu = new GenericMenu();

// Add a menu item using a Lambda expression.
genericMenu.addMenuItem("0", "First menu item", () -> {
    System.out.println("This is the first menu item");
    System.out.println("This menu item features a Lambda expression to define the function this menu item calls (Java version >= 1.8");
}  

// Add another menu item using a Runnable.
genericMenu.addMenuItem("1", "Second menu item", new Runnable(){
    @Override
    public void run(){
        System.out.println("This is the second menu item");
        System.out.println("This menu item features a Runnable to define the function this menu item calls");
    }
}

// Finally initalize the menu
genericMenu.initMenu();

This example results in the following menu representation:

As you can see in the image displayed above, the menu has a default Quit menu item.

As explained in the previous code example, there are multiple ways to bind code to a menu item.
The Lambda expression way ( () -> { // Code here. } ) is only usable with Java version 1.8 or higher.

Adding a menu item takes three parameters:

1. The value that has to be entered to execute the menu item.
2. The name of the menu item.
3. The code that will be run when the menu item gets selected, either Lambda function or a Runnable.