问题：关于2.3 jmu-Java-02基本语法-03-身份证排序 (9 分)

输出未能排序

    import java.util.Scanner;

    import java.util.Arrays;

    public class Main {

        public static void main(String[] args) {

            Scanner sc = new Scanner(System.in);

            int n =sc.nextInt();

     sc.nextLine();

            String[] ID =new String[n];

            for (int i=0;i<n;i++) {

                ID[i]=sc.nextLine();

            }

            for (int i=0;i<n;i++) {

                for (int j=i;j<n-1;j++) {

                    if (Integer.parseInt(ID[j].substring(6,10))>Integer.parseInt(ID[j+1].substring(6,10))) {

                        String Tmp = ID[j];

                        ID[j] =ID[j+1];

                        ID[j+1]= Tmp;

                        

                    }else if(Integer.parseInt(ID[j].substring(6,10))==Integer.parseInt(ID[j+1].substring(6,10))){

                        if(Integer.parseInt(ID[j].substring(10,12))>Integer.parseInt(ID[j+1].substring(10,12))){

                            String Tmp = ID[j];

                            ID[j]=ID[j+1];

                            ID[j+1]=Tmp;

                        }

                        else if (Integer.parseInt(ID[j].substring(10,12))==Integer.parseInt(ID[j+1].substring(10,12))){

                             if (Integer.parseInt(ID[j].substring(12,14))>Integer.parseInt(ID[j+1].substring(12,14))) {

                                 String Tmp =ID[j];

                                 ID[j]=ID[j+1];

                                 ID[j+1]=Tmp;

                             }

                        }

                    }

                }

            }

            for(;;) {

                String tmp=sc.nextLine();

                if (tmp.equals("sort1"))

                {

                    for(int i=0;i<n;i++) {

                        System.out.println(ID[i].substring(6,10)+"-"+ID[i].substring(10,12)+"-"+ID[i].substring(12,14));

                    }

                    }else if (tmp.equals("sort2")) {

                    for (int i=n-1;i>=0;i--) {

                        System.out.println(ID[i]);

                    }

                }else{

                    

                    System.out.println("exit");

                    break;

                }

            }

        }

                    

        }