从标准输入中读取文本

import java.io.BufferedReader;

import java.io.IOException;

import java.io.InputStreamReader;
/* from n o w j a v a . c o m*/

public class Main {

  public static void main(String[] argv) {

    try {

      BufferedReader in = new BufferedReader(new InputStreamReader(System.in));

      String str = "";

      while (str != null) {

        System.out.print("> prompt ");

        str = in.readLine();