FilterInputStream类close()方法 (FilterInputStream Class close() method)

• close() method is available in java.io package.

  close()方法在java.io包中可用。

• close() method is used to close this FilterInputStream and free all system resources linked with this stream.

  close()方法用于关闭此FilterInputStream并释放与此流链接的所有系统资源。

• close() method is a non-static method, it is accessible with the class object only and if we try to access the method with the class name then we will get an error.

  close()方法是一个非静态方法，只能通过类对象访问，如果尝试使用类名称访问该方法，则会收到错误消息。

• close() method may throw an exception at the time of closing the stream.

  close()方法在关闭流时可能会引发异常。

  IOException: This exception may throw when getting any input/output error while performing.

  IOException ：在执行过程中遇到任何输入/输出错误时，可能引发此异常。

Syntax:

句法：

public void close();

Parameter(s):

参数：

• It does not accept any parameter.

  它不接受任何参数。

Return value:

返回值：

The return type of the method is void, it returns nothing.

该方法的返回类型为void ，不返回任何内容。

Example:

例：

// Java program to demonstrate the example // of void close() method of FilterInputStreamimport java.io.*;public class CloseOfFIS {
    public static void main(String[] args) throws Exception {
     FileInputStream fis_stm = null;  FilterInputStream fil_stm = null;  try {
      // Instantiates FileInputStream and    // FilterInputStream   fis_stm = new FileInputStream("D:\\includehelp.txt");   fil_stm = new BufferedInputStream(fis_stm);   // By using read() method is to   // read the character from fil_stm   fil_stm.read();   // By using close() method is to   // close this fil_stm stream   fil_stm.close();   // when we call read() method   // after closing the stream will   // result an exception   fil_stm.read();  } catch (Exception ex) {
      System.out.println("Stream Closed Before!!!");  } finally {
      // with the help of this block is to   // free all necessary resources linked   // with the stream   if (fis_stm != null) {
       fis_stm.close();    if (fil_stm != null) {
        fil_stm.close();    }   }  } }}

Output

输出量

Stream Closed Before!!!

翻译自: