void close long skip(long n) void flush 描述 所述java.io.FilterOutputStream.Close()方法关闭该流并释放与该流相关的所有系统资源。 声明 以下是java.io.FilterOutputStream.Close()方法的声明 public void close() 参数 NA 返回值 此方法不返回任何值。 异常 IOException - 如果发生I / O错误。 实例 以下示例显示了java.io.FilterOutputStream.Close()方法的用法。 package com.tutorialspoint; import java.io.FileOutputStream; import java.io.FilterOutputStream; import java.io.IOException; import java.io.OutputStream; public class FilterOutputStreamDemo { public static void main(String[] args) throws Exception { OutputStream os = null; FilterOutputStream fos = null; try { // create input streams os = new FileOutputStream("C://test.txt"); fos = new FilterOutputStream(os); // releases any system resources associated with the stream fos.close(); // writes byte to the output stream fos.write(65); } catch(IOException e) { // if any I/O error occurs System.out.print("Close() is invoked prior to write()"); } finally { // releases any system resources associated with the stream if(os!=null) os.close(); if(fos!=null) fos.close(); } } } 让我们编译并运行上面的程序,这将产生以下结果 Close() is invoked prior to write() long skip(long n) void flush