将字符串写入文件，流

package java_io;
import java.io.*;
public class TestSringFile {
     public static void main(String[] args) {
     /*
        try {
      	   FileOutputStream fos=new FileOutputStream("D:/javaTest/Liu.txt");
      	   fos.write("字符串写入文件".getBytes());//确定的字符串写入文件中
      	   fos.close(); 
         }
     */
 //将从键盘输入的字符串写入文件中
    	 
       try {
      	   FileWriter fw=new FileWriter("D:/javaTest/Liu.txt");
      	   //fos.write("字符串写入文件".getBytes());//确定的字符串写入文件中
      	   BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
      	   BufferedWriter bw=new BufferedWriter(fw);
      	   String s = br.readLine();
			// 从键盘逐行读入数据输出到文件
		   while (!s.equals("")) {
    	       bw.write(s);  
			   s=br.readLine();
			   bw.newLine();
    	         
      	   }
           bw.flush();
      	   bw.close(); 
      	   br.close();
         }
       catch(FileNotFoundException e) {
    	   System.out.println("文件未找到！");
           System.exit(-1);    	   
       }
       catch(IOException e) {
    	   System.out.println("文件写入错误！");
           System.exit(-1);    	   
       }

     }
}