IO_SequenceInputStream

Posted 2020-12-02 changzuidaerguai

public class SequenceInputStreamJava {

public static void main(String[] args) throws IOException {
    // TODO Auto-generated method stub
    String sPath1 = "d:" + File.separator + "javatest" + File.separator + "CollectionTest1.java";
    String sPath2 = "d:" + File.separator + "javatest" + File.separator + "CollectionTest2.java";
    
    Vector<FileInputStream> v = new Vector<>();
    v.add(new FileInputStream(sPath1));
    v.add(new FileInputStream(sPath2));
    Enumeration<FileInputStream> e = v.elements();
    SequenceInputStream si = new SequenceInputStream(e);
    
    byte[] b = new byte[1024];
    int result = 0;
    //先读完sPath1文件，再读sPath2文件
    while((result = si.read(b)) != -1) {
        System.out.println(new String(b, 0, result));
    }
    si.close();
}

}