/** There are two implementations for MyInput. One is to use the BufferedReader  *  class in Chapter 16. The other is given in Chapter 7 using the JDK 1.5  *  Scanner class, which can only run in JDK 1.5. For this reason,  *  the source code here uses the BufferedReader class.  */import java.io.*;public class MyInput {  static BufferedReader br    = new BufferedReader(new InputStreamReader(System.in));  /** Read a string from the keyboard */  public static String readString() {    // Declare and initialize the string    String string = null;    // Get the string from the keyboard    try {      string = br.readLine();    }    catch (IOException ex) {      System.out.println(ex);    }    // Return the string obtained from the keyboard    return string;  }  /** Read an int value from the keyboard */  public static int readInt() {    return Integer.parseInt(readString());  }  /** Read a double value from the keyboard */  public static double readDouble() {    return Double.parseDouble(readString());  }  /** Read a byte value from the keyboard */  public static byte readByte() {    return Byte.parseByte(readString());  }  /** Read a short value from the keyboard */  public static short readShort() {    return Short.parseShort(readString());  }  /** Read a long value from the keyboard */  public static long readLong() {    return Long.parseLong(readString());  }  /** Read a float value from the keyboard */  public static float readFloat() {    return Float.parseFloat(readString());  }  /** Read a character from the keyboard */  public static char readChar() {    return readString().charAt(0);  }  /** Read a boolean value from the keyboard */  public static boolean readBoolean() {    return new Boolean(readString()).booleanValue();  }}