messy and unfinished.

IOUtil.java

import java.io.*;
import java.util.*;
/*
 ***********************************8**********************************
 ***************** By Magdalen Berns for miniproject ******************
 **********************************************************************
 *
 * This is a generic IOUtil class to make IO matters more simple to handle. 

 * Not to be confused with UserInput which is full of static methods that are not very "transferable". (i.e. I am unlikely to use them again in another program) 
 * 
 * SkipToDouble() Method to ignore non double values and extract data needed
 * 
 * SkipToInt() to make sure the number of particles is in the right format for trajectory
 * NB (could have used skip toDouble and then round it off alternatively but I wanted to try this)																				
 */

class IOUtil {


    /*
 * *
 * ********** keeps looking until double is found and will 'ignore' values that cannot be converted to double (words)*
 * *********/
    public static double skipToDouble(Scanner scanner) {

        while (scanner.hasNext() && !scanner.hasNextDouble()) {
            scanner.next();
        }
        return scanner.hasNextDouble() ? scanner.nextDouble() : Double.NaN;
    }

    /*
     * *
     * * Picks out the first integer value it sees and returns it.
     * */
    public static int skipToInt(Scanner scanner) {

        while (scanner.hasNext() && !scanner.hasNextInt()) {
            scanner.next();
        }
        //This is probably a bit naughty because int is primitive -but it does what I want so I don't care
        return scanner.hasNextInt() ? scanner.nextInt() : (int) Double.NaN;
    }
    public static String typedInput() throws IOException {
        BufferedReader keyIn = new BufferedReader(new InputStreamReader(System.in));
        return keyIn.readLine();

    }
    /*Label (sets and gets at the same time) */
    public static String label(String string) {
        return string;
    }
    /*Label (sets and gets at the same time) */
    public static String fileName(String string) {
        return string;
    }


    /*
    *Call this every time wrong thing is typed.*/
    public static void abuse() {
        System.out.println("Invalid entry.");
        System.out.println("Abusive statement.");
        System.exit(0);
    }

}