Help writing some Scanner code

Hi.

I'm writing a program that will do different sort of things to matrices (add, subtract, multiply) from a file. I'd like to ask the user which file they would like read, and then read the file for the matrices.

How do I create a scanner object that will user input files to do that?

Code :

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new Scanner(new File(new Scanner(System.in).nextLine()));

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Ok, I have that, but now I'd like to surround it by a try/catch phrase in case the user puts in a file that isn't recognized or can't be read.

I know that I have to exit the program and return a negative value at some point, I'm just not sure where. Here's what I have:

Code :

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	public static void askForFileName() {
		System.out.println("Please enter a file name ==> ");
		try {
			new Scanner(new File(new Scanner(System.in).nextLine()));
		} catch (FileNotFoundException e) {
 
			e.printStackTrace();
		}
 
	}

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Also, if I create a method that will read the file entered by the user here, should I give it a variable in this method and call it in the read method, or what would be the best way to go about that?

You are asking questions which contradict each other. You first asked how to open a file to be read based on user input. The you place it in a method called askForFileName() so all it should do is ask for a file name, not try to open it! You need to re-think how you are coding this, remember java is OOP and if this is an assignment, the previous line of code I gave you will give you next to no marks due to its poor presentation and readibility.

Regards,
Chris

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