Java Java.io.FilterOutputStream.Close() 方法

  • 描述

    java.io.FilterOutputStream.Close()方法关闭流并释放与该流关联的所有系统资源。
  • 声明

    以下是java.io.FilterOutputStream.Close()方法的声明-
     public void close()
  • 参数

    不适用
  • 返回值

    此方法不返回任何值。
  • 异常

    IOException如果发生I / O错误。
  • 例子

    以下示例显示java.io.FilterOutputStream.Close()方法的用法。
     
    package com.jc2182;
    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();
          }
       }
    }
    
    让我们编译并运行以上程序,这将产生以下结果-
     Close() is invoked prior to write()