我想把inputfile 压缩成zipfilename ，请问各位高手可以这样写吗？

//创建一个ZIP文件zipfilename ----- (xxx.zip)
File f = new File(zipfilename);
FileWriter fw = new FileWriter(f);
ZipOutputStream out = new ZipOutputStream(new BufferedWriter(fw));

//被压缩的文件inputfilename
FileReader in = new FileReader(new File(inputfilename));
BufferedReader br = new BufferedReader(in);
out.putNextEntry(new ZipEntry(inputfilename));

String c;
while ((c = br.readLine())!=null) {
out.write(c);
out.newLine();
}
in.close();
out.close();

请高手详细说明一下为什么ZipOutputStream out = new ZipOutputStream(new BufferedWriter(fw))有问题？
不胜感谢！！！

原来这个论坛也没有高手的！