Java对文件的读、写操作

package test;

import java.io.BufferedReader;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;

public class FileOperator {

	/**
	 * @param args
	 */
	public void readFile(String path){
		try {
			InputStream in = new FileInputStream(path);
			BufferedReader reader = new BufferedReader(new InputStreamReader(in));
			String line = "";
			while((line=reader.readLine())!=null){
				System.out.println(line);
			}
			reader.close();
			in.close();
		} catch (FileNotFoundException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}catch(IOException e){
			e.printStackTrace();
		}
	}
	
	public void writeFile(String fileName){
		try {
			OutputStream out = new FileOutputStream(fileName);
			String src = "This is a new File";
			byte[] bytes=src.getBytes();
			out.write(bytes);
			out.flush();
			out.close();
		} catch (FileNotFoundException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}catch(IOException e){
			e.printStackTrace();
		}
	}
	
	public static void main(String[] args) {
		// TODO Auto-generated method stub
		FileOperator op = new FileOperator();
		op.readFile("e:/ok.txt");
		op.writeFile("e:/ok2.txt");
	}

}

评论

1 楼 hemin108 2009-07-06  

呵呵 这些我们在基础时没好好研究，看后觉得有点惭愧啊··