JAVA 建盤輸入

import java.io.*;

public class app2_1
{
public static void main(String args[]) throws IOException
{
BufferedReader b = new BufferedReader(new InputStreamReader(System.in));
System.out.println("請輸入數字 ");
String S1 = b.readLine();
System.out.println("輸入數字為 " + S1);
}
}

java.io
Class BufferedReader

java.lang.Object
  java.io.Reader
      java.io.BufferedReader

Direct Known Subclasses:

LineNumberReader

String

readLine()           Read a line of text.

readLine

public String readLine()
                throws IOException

Read a line of text. A line is considered to be terminated by any one of a line feed ('\n'), a carriage return ('\r'), or a carriage return followed immediately by a linefeed.

Returns:

A String containing the contents of the line, not including any line-termination characters, or null if the end of the stream has been reached

Throws:

IOException - If an I/O error occurs