void close()

描述 (Description)

java.io.FilterInputStream.close()方法关闭此输入流并释放与该流关联的所有系统资源。

声明 (Declaration)

以下是public void close()方法的声明 -public void close()

参数 (Parameters)

NA

返回值 (Return Value)

该方法不返回任何值。

异常 (Exception)

IOException - 如果发生I/O错误。

例子 (Example)

以下示例显示了public void close()方法的用法。package com.iowiki;

import java.io.BufferedInputStream;

import java.io.FileInputStream;

import java.io.FilterInputStream;

import java.io.IOException;

import java.io.InputStream;

public class FilterInputStreamDemo {

public static void main(String[] args) throws Exception {

InputStream is = null;

FilterInputStream fis = null;

try {

// create input streams

is = new FileInputStream("C://test.txt");

fis = new BufferedInputStream(is);

// closes and releases the associated system resources

fis.close();

// read is called after close() invocation

fis.read();

} catch(IOException e) {

System.out.print("stream is closed prior ot this call");

} finally {

// releases any system resources associated with the stream

if(is!=null)

is.close();

if(fis!=null)

fis.close();

}

}

}

假设我们有一个文本文件c:/test.txt ，它具有以下内容。 该文件将用作示例程序的输入 -ABCDEF

让我们编译并运行上面的程序，这将产生以下结果 -stream is closed prior ot this call