How can I get the value at the end of a string?

I’m trying to write a simple and quick text-based java dungeon crawler.

The player can type in simple 3 letter commands followed by a number value like this:

NTH 21, or ATT 3, or CST 102, etc…

I know how to get the first 3 letter command using substring().

I also know I can use substring() to get the end of a string like this:

amount = gameInput.substring(gameInput.length() - 3)

But I’m not sure how to handle it since the amount can be any size of number like 1, or 28, 490, 4329, etc…

Here is what I have so far:

// example move commands 'NTH 10', 'EST 3', 'WST 320', 'STH 11'
// example combat commands 'ATT 333', 'CST 7102', 'STH 4'

system.out.print("Enter your character action and value amount: ");
system.out.print("n ** Enter 'END 9' to end game **");

while(userInput != "END 9")
{ 
    gameInput = myScanner.nextLine();

    // character action
    direction = gameInput.substring(0, 2);
    
    // action amount
    amount = 

}

Thanks!

Answer

use String#split like:

String[] args = userInput.split(" ");

it will split the string by space.

then to get the last argument use:

String lastArg = args[args.length - 1];

I hope I helped 🙂

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Answer