java写入文件

public class App 
{
    public static void main( String[] args ) throws IOException
    {
    	FileWriter fw=new FileWriter("e:/bc.txt");
    	BufferedWriter bw=new BufferedWriter(fw);
    	for(int i=1;i<=70;i++){
        bw.write( UUID.randomUUID().toString()+"\r\n");
       
    	}
    	bw.close();
    	fw.close();
    }
}