例子
以下示例显示java.io.BufferedInputStream.close()方法的用法。
package com.jc2182;
import java.io.BufferedInputStream;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
public class BufferedInputStreamDemo {
public static void main(String[] args) throws Exception {
BufferedInputStream bis = null;
try {
// open input stream test.txt for reading purpose.
inStream = new FileInputStream("c:/test.txt");
// input stream is converted to buffered input stream
bis = new BufferedInputStream(inStream);
// invoke available
int byteNum = bis.available();
// number of bytes available is printed
System.out.println(byteNum);
// releases any system resources associated with the stream
bis.close();
// throws io exception on available() invocation
byteNum = bis.available();
System.out.println(byteNum);
} catch (IOException e) {
// exception occurred.
System.out.println("Error: Sorry 'bis' is closed");
} finally {
// releases any system resources associated with the stream
if(inStream!=null)
inStream.close();
}
}
}
假设我们有一个文本文件c:/test.txt ,其内容如下。该文件将用作示例程序的输入-
让我们编译并运行以上程序,这将产生以下结果-
Error: Sorry 'bis' is closed