149-教师类2

[java]代码库
import java.util.Scanner;
import java.util.Arrays;
public class Main {
    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);    
  
        int num = scan.nextInt();
        Teacher[] t = new Teacher[num];
        TeacherManagement tea = new TeacherManagement(num);
        for(int i = 0;i < num; i++)
        {
            int no = scan.nextInt();
            String name = scan.next();
            int age = scan.nextInt();
            String se = scan.next();
            t[i] = new Teacher(no,name,age,se);
            tea.add(t[i]);
        }
        Arrays.sort(t);
        for( int i = 0; i < num; i++)
            System.out.println(t[i].toString());
        String name = scan.next();
        tea.search(name);
        num = scan.nextInt();
        tea.search(num);
         
        scan.close();
   }
}
class Teacher implements Comparable
{  
       int no;
       int age;
       String name;
       String seminary;
       public Teacher(int n, String na, int a, String s)
       {
           no = n;
           name = na;
           age = a;
           seminary = s;
       }
       void setno(int n)
       {
           no = n;
       }
       void setname(String n)
       {
           name = n;
       }
       void setage(int a)
       {
           age = a;
       }
       void setseminary(String s)
       {
           seminary = s;
       }
       int getno()
       {
           return no;
       }
       int getage()
       {
           return age;
       }
       String getname()
       {
           return name;
       }
       String getseminary()
       {
           return seminary;
       }
       boolean equals(Teacher t)
       {
           if(this.no == t.getno())
               return true;
           else
               return false;
       }
       public String toString()
       {
           return "no: "+no+", name: "+name+", age: "+age+", seminary: "+seminary;
       }
       @Override//重写
       public int compareTo(Object a)
       {
           Teacher b = (Teacher) a;
           if(this.no > b.no)
               return 1;
           else if(this.no < b.no)
               return -1;
           else
               return 0;
       }
}
class TeacherManagement
{
     private static int num = 0; 
    Teacher[] teacher ;
     public TeacherManagement(int a)
     {
         teacher = new Teacher[a];
     }
     void add(Teacher t)
     {
         teacher[num] = t;
         num++;
     }
     void search(String n)
     {
         int flag = 0;
         System.out.println("search by name:");
         for(int i = 0; i < num; i++)
         {
             if(n.equals(teacher[i].getname()))
             {
                 System.out.println(teacher[i].toString());
                 flag = 1;
             }
         }
         if(flag == 0)
             System.out.println("no such teacher");
     }
     void search(int a)
     {
         int flag = 0;
         System.out.println("search by age:");
         for(int i = 0; i < num; i++)
         {
             if(a == teacher[i].getage())
             {
                 System.out.println(teacher[i].toString());
                 flag = 1;
             }
         }
         if(flag == 0)
             System.out.println("no such teacher");
     }
}
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