java写文件

写：

/**
 * 写文件
 * @param path
 * @return
 * @throws IOException
 */
public BufferedWriter writeFile(final String path) throws IOException {
    BufferedWriter writer = new BufferedWriter(new FileWriter(path));

    return writer;
}

写完别忘了关闭：

writer.close();

eg.

writer.writer("hello, world");
writer.newLine();    // 新的一行
wirter.close;            // 写完记得关闭