java文本文件读写demo

package test;

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

public class Test {


	public static void main(String[] args) {
		try {
			FileWriter fileWriter=new FileWriter("test.txt");
			BufferedWriter bfW=new BufferedWriter(fileWriter);
			bfW.write("这是我的一个文件测试。。。。");
			bfW.newLine();
			bfW.write("测试完毕了。。。。");
			bfW.flush();
			bfW.close();
			fileWriter.close();
			
			/*----------------------------------------*/
			FileReader fileReader=new FileReader("test.txt");
			BufferedReader bfR=new BufferedReader(fileReader);
			String str="";
			do{
				str=bfR.readLine();
				System.out.println(str==null?"":str);
			}while(str!=null);
			fileReader.close();
			bfR.close();
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		
	}

}