package sequenceInputStream.cn;import java.io.File;import java.io.FileInputStream;import java.io.FileNotFoundException;import java.io.FileOutputStream;import java.io.IOException;import java.io.InputStream;import java.io.OutputStream;import java.io.SequenceInputStream;/* * 合并流：主要功能是将两个文件的内容合并在一个文件里面 * 构造方法： * SequenceInputStream(InputStream s1, InputStream s2) */public class SequenceInputStreamDemo {    public static void main(String[] args) throws Exception {        File f1 = new File("d:"+File.separator+"a.txt");        File f2 = new File("d:"+File.separator+"b.txt");        //指定一个合并文件        File f3 = new File("d:"+File.separator+"ab.txt");        InputStream s1 = null;        InputStream s2 = null;        OutputStream s3 = null;        try {             s1 = new FileInputStream(f1);             s2 = new FileInputStream(f2);             s3 = new FileOutputStream(f3);        } catch (FileNotFoundException e) {            // TODO Auto-generated catch block            e.printStackTrace();        }        SequenceInputStream si = new SequenceInputStream(s1,s2);        int temp = 0 ;        try {            while ((temp = si.read())!=-1) {             s3.write(temp);                        }        } catch (IOException e) {            // TODO Auto-generated catch block            e.printStackTrace();        }            s1.close();            s2.close();            s3.close();            s1.close();            }}