import java.io.BufferedReader; import java.io.InputStream; import java.io.InputStreamReader; import java.io.IOException;/** A class to read strings and numbers from an input stream. This class is suitable for beginning Java programmers. It constructs the necessary buffered reader, handles I/O exceptions, and converts strings to numbers. */public class ConsoleReader { /** Constructs a console reader from an input stream such as System.in @param inStream an input stream */ public ConsoleReader(InputStream inStream) { reader = new BufferedReader (new InputStreamReader(inStream)); } /** Reads a line of input and converts it into an integer. The input line must contain nothing but an integer. Not even added white space is allowed. @return the integer that the user typed */ public int readInt() { String inputString = readLine(); int n = Integer.parseInt(inputString); return n; } /** Reads a line of input and converts it into a floating- point number. The input line must contain nothing but a nunber. Not even added white space is allowed. @return the number that the user typed */ public double readDouble() { String inputString = readLine(); double x = Double.parseDouble(inputString); return x; } /** Reads a line of input. In the (unlikely) event of an IOException, the program terminates. @return the line of input that the user typed, null at the end of input */ public String readLine() { String inputLine = ""; try { inputLine = reader.readLine(); } catch(IOException e) { System.out.println(e); System.exit(1); } return inputLine; } private BufferedReader reader; } 这是那个源程序
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.IOException;/**
A class to read strings and numbers from an input stream.
This class is suitable for beginning Java programmers.
It constructs the necessary buffered reader,
handles I/O exceptions, and converts strings to numbers.
*/public class ConsoleReader
{ /**
Constructs a console reader from an input stream
such as System.in
@param inStream an input stream
*/
public ConsoleReader(InputStream inStream)
{ reader = new BufferedReader
(new InputStreamReader(inStream));
} /**
Reads a line of input and converts it into an integer.
The input line must contain nothing but an integer.
Not even added white space is allowed.
@return the integer that the user typed
*/
public int readInt()
{ String inputString = readLine();
int n = Integer.parseInt(inputString);
return n;
} /**
Reads a line of input and converts it into a floating-
point number. The input line must contain nothing but
a nunber. Not even added white space is allowed.
@return the number that the user typed
*/
public double readDouble()
{ String inputString = readLine();
double x = Double.parseDouble(inputString);
return x;
} /**
Reads a line of input. In the (unlikely) event
of an IOException, the program terminates.
@return the line of input that the user typed, null
at the end of input
*/
public String readLine()
{ String inputLine = ""; try
{ inputLine = reader.readLine();
}
catch(IOException e)
{ System.out.println(e);
System.exit(1);
} return inputLine;
} private BufferedReader reader;
}
这是那个源程序