JavaSE 高级 第17节 写入缓冲类BufferedWriter

2016-07-24

1，BufferedWriter

debug:

F5 进入方法

F6 执行下一行代码

F7 退出方法

F8 跳到下一个断点

package com.java1995;

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;

public class CopyFile {

    public static void main(String[] args) {
        // 导入包的快捷键Ctrl+Shift+O
        FileReader fr = null;
        FileWriter fw = null;
        BufferedReader br = null;
        BufferedWriter bw = null;

        try {
            fr = new FileReader("C:\\java1995\\workspace_se_2\\day17\\src\\com\\java1995\\CopyFile.java");

            fw = new FileWriter("C:\\java1995\\workspace_se_2\\day17\\src\\out.txt");

            br = new BufferedReader(fr);
            bw = new BufferedWriter(fw);

            int c = 0;
            while ((c = br.read()) != -1) {
                bw.write(c);
                // bw.flush();
            }
            bw.flush();
        } catch (FileNotFoundException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } finally {
            try {
                fr.close();
                fw.close();
                br.close();
                bw.close();
            } catch (IOException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
        }
    }
}

【参考资料】

[1] Java轻松入门经典教程【完整版】