Java 各种IO模板

用惯了python给我开好的with语法糖来读写文件,现在一下子转成Java还真的有点不适应
晚上做了个Java的IO板子,以后方便查阅

import java.io.*;
// import com.sun.tools.sjavac.server.SysInfo;

public class JavaIO
{
    public static void main(String[] args) throws IOException{
        // inputReader();
        // txtReader();
        // txtWriter();
    }
	//从命令行里里读数据
    public static void inputReader() throws IOException{
        String c;
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        System.out.println("输入字符直到按下q推出");
        while(true){
            c = br.readLine();
            if (!c.equals("q")){
                System.out.println(c);
                continue;
            }
            else{
                break;
            }
        }
    }
	//txt文件读取
    public static void txtReader() throws IOException{
        String pathName = "D:/province.txt";
        File file = new File(pathName);
        InputStreamReader reader = new InputStreamReader(new FileInputStream(file));
        BufferedReader br = new BufferedReader(reader);
        String line;
        line = br.readLine();
        while(line != null){
            System.out.println(line);
            line = br.readLine();
        }
    }
	//txt文件写入
    public static void txtWriter() throws IOException{
        File file = new File("D:/javaWriterTest.txt");
        file.createNewFile();
        BufferedWriter bw = new BufferedWriter(new FileWriter(file));
        bw.append("我是谁?\r\n");
        bw.append("bushidao1\r\n");
        bw.flush();
        bw.append("鬼知道你是谁");
        bw.close();
    }
}


posted @ 2019-05-25 19:48  ayang818  阅读(282)  评论(0编辑  收藏  举报