我当前正在使用FileWriter创建和写入文件。有什么方法可以每次都写入同一个文件而不删除其中的内容？

   fout = new FileWriter(
    "Distribution_" + Double.toString(_lowerBound) + "_" + Double.toString(_highBound) + ".txt");
    fileout = new PrintWriter(fout,true);
fileout.print(now.getTime().toString() + ", " + weight + ","+ count +"\n");
    fileout.close();