合并流

package class1;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.SequenceInputStream;
public class SequenceDemo {
public static void main(String args[]) throws Exception{
InputStream is1 = null ;
InputStream is2 = null ;
OutputStream os = null ;
SequenceInputStream sis = null ;
is1 = new FileInputStream("d:" + File.separator + "a.txt") ;
is2 = new FileInputStream("d:" + File.separator + "b.txt") ;
os = new FileOutputStream("d:" + File.separator + "ab.txt");
sis = new SequenceInputStream(is1,is2);
int temp = 0 ;
while ((temp = sis.read()) != -1) {
os.write(temp) ;
}
sis.close();
is1.close();
is2.close();
os.close();
}
}