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