例子
以下示例显示java.io.FileOutputStream.getChannel()方法的用法。
package com.jc2182;
import java.io.FileOutputStream;
import java.io.IOException;
import java.nio.channels.FileChannel;
public class FileOutputStreamDemo {
public static void main(String[] args) throws IOException {
FileOutputStream fos = null;
FileChannel fc = null;
long pos;
byte b[] = {65, 66, 67, 68, 69};
try {
// create new file output stream
fos = new FileOutputStream("C://test.txt");
// write buffer to the output stream
fos.write(b);
// pushes stream content to the underlying file
fos.flush();
// returns file channel associated with this stream
fc = fos.getChannel();
// returns the number of bytes written
pos = fc.position();
// prints
System.out.print(pos);
} catch(Exception ex) {
// if an error occurs
ex.printStackTrace();
} finally {
if(fos!=null)
fos.close();
if(fc!=null)
fc.close();
}
}
}
让我们编译并运行以上程序,这将产生以下结果-