public class Console {
    private String[] commands = new String[] {
    // All of your commands here
	    },
	    lines = new String[1000];
    // 1000, just b/c you probably won't top that any time soon...

    // Now for the character that will appear first on the command line, like: #
    // open EVEIL_PLANZ.txt
    private String forechar = ""; // Make it something like $, or %, or even
				  // #...
    private int currentline = 1;

    private ArrayList<File> files = null;

    public Console(String init_text, ArrayList<File> files) {
	this.files = files;
	initText(init_text);
    }

    // Makes the first line of text appear, i.e. Hello, I am HAL 9000,
    // Heuristically programmed ALgorithmic computer
    public void initText(String init_text) {
	lines[0] = init_text;
	currentline++;
    }

    // Should be input by something. Something that you can do.
    public void enter(String command) {
    for(String tempcommand : commands)
	if()//Check if the command matches any in database
	    //Do whatever you want that command to do, like, openFile()
        //Move up on the current line!
	currentline++;
	lines[currentline] = forechar;
}

    // Render all of the lines! Should be called by computer entity or something
    // lower in the hierarchy...
    public void renderScreen() {
    }
    
    //Used to open a file...
    public void openFile(File file) {
	lines[currentline] = "FILE DUMP: " + file.getContents();
    }

    // Basically just a file that you can open.
    private class File {
	private String contents = "UNEDITED";

	public File(String contents) {
	    this.contents = contents;
	}

	public String getContents() {
	    return contents;
	}
    }
}