Java1-崔雨豪1407094234

[cyhbrilliant]

//Delete_Sheep================================================
        ArrayList<sheep> sheeplist=new ArrayList<sheep>();
        sheeplist.add(new sheep("1"));
        sheeplist.add(new sheep("2"));
        sheeplist.add(new sheep("3"));
        sheeplist.add(new sheep("4"));
        sheeplist.add(new sheep("5"));
        sheeplist.add(new sheep("6"));
        int i=0;
//  /*方法一*/：for(i=5;i>2;i--)
//          sheeplist.remove(sheeplist.get(i));
//      
//      
//  /*方法二*/：for(i=0;i<3;i++)
//          sheeplist.remove(sheeplist.get(3));
//          
//  /*方法三*/：while(sheeplist.size()!=3)
//          sheeplist.remove(sheeplist.get(3));

        for(i=0;i<3;i++)
        System.out.println(((sheep)(sheeplist.get(i))).getName());


//======================================================================
//Create_FileAuto=========================================================
public class fileTEST {
    public static void main(String[] args) {
        //建立hello world文件
        File manyfile=new File("D:\\test");
        manyfile.mkdir();
        File file = null;
        try {
            manyfile.mkdir();
            for(int i=0;i<10;i++)
            {
                file=new File(manyfile,"helloworld"+i+".txt");
                file.createNewFile();
            }
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }


        try {

            for(int i=0;i<10;i++)
            {
                OutputStream os=new FileOutputStream("D:\\test\\helloworld"+i+".txt");
                String s="andriod lab"+i;
                os.write(s.getBytes());

            }
        } 
        catch (FileNotFoundException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();

            }
        catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();

        }




        try {
            InputStream is=new FileInputStream("D:\\test\\helloworld"+0+".txt");
            byte[] read=new byte[1024];
            is.read(read);
            System.out.println();

        } catch (Exception e) {
            // TODO: handle exception
        }       


    }

}
//============================================================
//Threads=====================================================
public class cyh {
    public static void main(String[] args) {
        threadx thread1=new threadx();
        threadx thread2=new threadx();
        thread1.start();
        thread2.start();

        thready thread3=new thready();
        thready thread4=new thready();
        Thread thread5=new Thread(thread3);
        Thread thread6=new Thread(thread4);
        thread5.start();
        thread6.start();

    }

}


class threadx extends Thread{
    public void run(){
        System.out.println("openThread");
    }
    static int a=0;


}

class s{

}
class thready extends s implements Runnable{
    public void run() {
        System.out.println("openRunnable");

    }
}