package sk.oop.pr2;

import java.io.*;

public class Zklavesnice
{	


	public static char readChar(String napis_pre_uzivatela)
	{
		char c = ' ';
						
		InputStreamReader zklavesnice = new InputStreamReader(System.in);		
		try
		{	System.out.println(napis_pre_uzivatela);
			c = (char) zklavesnice.read();
			//System.out.println("Nacital som " + c);
		}
		catch (Exception e)
		{
			System.out.println("nepodarilo sa");
			c = readChar(napis_pre_uzivatela);
		}
		
		return c;
	}
	
	public static String readString(String napis_pre_uzivatela)
	{
		String s = "";
				
		BufferedReader zklavesnice = new BufferedReader(new InputStreamReader(System.in));		
		try
		{	System.out.println(napis_pre_uzivatela);
			s = zklavesnice.readLine();
			//System.out.println("Nacital som " + s);
		}
		catch (Exception e)
		{
			System.out.println("nepodarilo sa");
			s = readString(napis_pre_uzivatela);
		}
		
		return s;
	}
	
	public static int readInt(String napis_pre_uzivatela)
	{
		int n = 0;
		String s;
				
		BufferedReader zklavesnice = new BufferedReader(new InputStreamReader(System.in));		
		try
		{	System.out.println(napis_pre_uzivatela);
			s = zklavesnice.readLine();
			//System.out.println("Nacital som " + s);
			n = Integer.parseInt(s);
		}
		catch (Exception e)
		{
			System.out.println("nepodarilo sa");
			n = readInt(napis_pre_uzivatela);
		}
		
		return n;
	}
	
	public static double readDouble(String napis_pre_uzivatela)
	{
		double x = 0.0;
		String s;
				
		BufferedReader zklavesnice = new BufferedReader(new InputStreamReader(System.in));		
		try
		{	System.out.println(napis_pre_uzivatela);
			s = zklavesnice.readLine();
			//System.out.println("Nacital som " + s);
			x = Double.parseDouble(s);
		}
		catch (Exception e)
		{
			System.out.println("nepodarilo sa");
			x = readDouble(napis_pre_uzivatela);
		}
		
		return x;
	}
	
	
	
}