public class Demo3 {
public static void main(String[] args) throws IOException {
testMerge();
}
public static void testMerge() throws IOException{
//1.获取目标文件
File file1 = new File("C:\B\a.txt");
File file2 = new File("C:\B\b.txt");
File file3 = new File("C:\B\c.txt");
//2.创建通道
FileInputStream inputStream1 = new FileInputStream(file1);
FileInputStream inputStream2 = new FileInputStream(file2);
FileOutputStream outputStream = new FileOutputStream(file3);
/*//3.用集合存输入流
ArrayList<FileInputStream> list = new ArrayList<FileInputStream>();
list.add(inputStream1);
list.add(inputStream2);
//4.边读边写
byte[] b = new byte[1024];
int length = 0;
for(int i = 0;i<list.size();i++){
while((length = list.get(i).read(b)) !=-1){
//写数据
outputStream.write(b,0,length);
}
}
//5.关闭
outputStream.close();
inputStream1.close();
inputStream2.close();*/
//3.建立一个序列流
SequenceInputStream serInputStream = new SequenceInputStream(inputStream1,inputStream2);
byte[] b = new byte[1024];
//4.读取数据
int length = 0;
while ((length = serInputStream.read(b)) != -1) {
//写入数据
outputStream.write(b,0,length);
}
//5.关闭
outputStream.close();
serInputStream.close();
}
}