1. WIKI教程
2. Java.io包
3. void close()

void close()

描述 (Description)

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

声明 (Declaration)

以下是java.io.FilterOutputStream.Close()方法的声明 -

public void close()

参数 (Parameters)

NA

返回值 (Return Value)

此方法不返回任何值。

异常 (Exception)

IOException - 如果发生I/O错误。

例子 (Example)

以下示例显示了java.io.FilterOutputStream.Close（）方法的用法。

package com.iowiki;
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()