import java.io.*;

public class Maincc {

public static void main(String[] args){

String str;

InputStreamReader st = new InputStreamReader(System.in);

BufferedReader bu = new BufferedReader(st);

try{

System.out.println("请输入：");

str = bu.readLine();

System.out.println(str);

}catch(Exception e)

{

System.err.println("io");

e.printStackTrace();

}

}

}

--------------------------------------华丽的分割线----------------------------

package com.qq.com;

import java.io.*;

public class Maincc {

public static void main(String[] args) throws IOException{

String str;

InputStreamReader st = new InputStreamReader(System.in);

BufferedReader bu = new BufferedReader(st);

System.out.println("请输入：");

str = bu.readLine();

System.out.println(str);

}

}