// Class Console   CSE 110  Fall 2009.
//
// This is a special class written by authors of textbook for
// CSE 110. You must have this class in your directory in
// order to use simplified input methods. These are
// for integers, real numbers (double) characters etc.
// If you are using your PC to do Lab assignments, you need
// to download this to your PC.
//
// This also can be copied from cse110 account on sparky.
// Use cp ~cse110/Console.java  Console.java



import java.io.*;

public class Console {
	public static void pause () {
		System.out.print ("\nHit Enter to continue: ");
		try {
		InputStreamReader reader = new InputStreamReader(System.in);
		BufferedReader buffer = new BufferedReader(reader);
                buffer.readLine();
		}
		catch (Exception e) {
		System.exit(0);
		}
	}
	
	public static int readInt(String prompt){
		int value=0;
		System.out.print (prompt);
		try {
		InputStreamReader reader = new InputStreamReader (System.in);
		BufferedReader buffer = new BufferedReader(reader);
                String s = buffer.readLine();
		value= Integer.parseInt(s);
		}
		catch (Exception e ) {
		System.out.println(e.toString());
		Console.pause();
		System.exit(0);
		}
		return value;
		}

	public static double readDouble(String prompt){
		double value=0;
		System.out.print (prompt);
		try{
		InputStreamReader reader = new InputStreamReader(System.in);
                BufferedReader buffer = new BufferedReader(reader);
		String s = buffer.readLine();
		value=(Double.valueOf(s)).doubleValue();
		}
		catch (Exception e){
		System.out.println(e.toString());
		Console.pause();
		System.exit(0);
		}
		return value;
		}

	public static char readChar(String prompt){
		char value=' ';
		System.out.print (prompt);
		try {
		InputStreamReader reader = new InputStreamReader(System.in);
		BufferedReader buffer = new BufferedReader(reader);
		String s = buffer.readLine();
		if (s.length()==0) throw new Exception("No character entered");
		value=s.charAt(0);
		}	
		catch (Exception e){
		System.out.println(e.toString());
		Console.pause();
		System.exit(0);
		}
		return value;
		}

	public static String readString(String prompt){
		String value="";
		System.out.print(prompt);
		try {
		InputStreamReader reader = new InputStreamReader(System.in);
		BufferedReader buffer=new BufferedReader(reader);
		value=buffer.readLine();
		}
		catch(Exception e){
		System.out.println(e.toString());
		Console.pause();
		System.exit(0);
		}
		return value;
		}
}