package util;


import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

public class Input {

    public static String readString() {
        try {
            BufferedReader in = new BufferedReader(new InputStreamReader(
                    System.in));
            String s = in.readLine();
            return s;
        } catch (IOException ex) {
            System.out.println(ex.getMessage());
        }
        return "- Nothing to read -";
    }

    public static String readString(String prompt) {
        System.out.print(prompt);
        return readString();
    }

    public static String printAsOften(String what, int howOften) {
        StringBuffer sb = new StringBuffer(howOften * what.length());
        for (int i = 0; i < howOften; i++) {
            sb.append(howOften);
        }

        return sb.toString();
    }


    public static int readInt() {
        return Integer.valueOf(readString()).intValue();
    }

    public static int readInt(String prompt) {
        return Integer.valueOf(readString(prompt)).intValue();
    }

    public static float readFloat() {
        return Float.valueOf(readString()).floatValue();
    }

    public static float readFloat(String prompt) {
        return Float.valueOf(readString(prompt)).floatValue();
    }

    public static double readDouble() {
        return Double.valueOf(readString()).doubleValue();
    }

    public static double readDouble(String prompt) {
        return Double.valueOf(readString(prompt)).doubleValue();
    }

    public static String getLineSeperator() {
        return System.getProperty("line.separator");
    }

    public static boolean isEmpty(String text) {
        return text.length() == 0 || text == null;
    }

    public static boolean isInt(String text) {
        boolean isInt = false;
        try {
            Integer.parseInt(text);

            isInt = true;
        } catch (NumberFormatException exception) {
            isInt = false;
        }
        return isInt;
    }

    public static int toInt(String text) {
        int ret = 0;
        try {
            ret = Integer.parseInt(text);
        } catch (NumberFormatException exception) {
            return 0;
        }
        return ret;
    }
}