java io流

標籤：

import java.io.*;public class Demo1{    public static void main(String args[])    {        try{        InputStreamReader isr=new InputStreamReader(System.in);        BufferedReader br=new BufferedReader(isr);        System.out.println("請輸入一個數");        String str=br.readLine();        System.out.println(str);        }catch(Exception e)        {            e.printStackTrace();        }    }}

其中

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

可直接整合成

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

 

java io流