public class Read {

  public static String getString(String msg) {
    boolean success = false; String r = "";
    while (!success) try {
      System.out.print(msg);
      r = System.console().readLine();
      success = true;
    } catch (Exception e) { }
    return r;
  }
  public static String getString() { return getString(""); }

  public static int getInt(String msg) {
    boolean success = false; int r = 0;
    while (!success) try {
      System.out.print(msg);
      r = Integer.parseInt( System.console().readLine() );
      success = true;
    } catch (Exception e) { }
    return r;
  }
  public static int getInt() { return getInt(""); }

  public static double getDouble(String msg) {
    boolean success = false; double r = 0;
    while (!success) try {
      System.out.print(msg);
      r = Double.parseDouble( System.console().readLine() );
      success = true;
    } catch (Exception e) { }
    return r;
  }
  public static double getDouble() { return getDouble(""); }

  public static float getFloat(String msg) {
    boolean success = false; float r = 0;
    while (!success) try {
      System.out.print(msg);
      r = Float.parseFloat( System.console().readLine() );
      success = true;
    } catch (Exception e) { }
    return r;
  }
  public static float getFloat() { return getFloat(""); }
}