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云代码 - java代码库

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2018-10-25 作者: 不吃鱼举报

[java]代码库

import java.util.*;
public class Main{
    public static void main(String[] args ) {
         Scanner scan = new Scanner(System.in);
         int num, no, score, i, j;
         String name, op;
          
         num = scan.nextInt();
         List<Student> L = new LinkedList<Student>();
         Student s;
         for(i = 0; i < num; i++) {
             no = scan.nextInt();
             name = scan.next();
             score = scan.nextInt();
             s = new Student(no, name, score);
             L.add(s);
         }
         num = scan.nextInt();
          
         for(j = 0; j < num; j++) {
             op = scan.next();
             if(op.equals("add")){
                 no = scan.nextInt();
                 name = scan.next();
                 score = scan.nextInt();
                 s = new Student(no, name, score);
                 L.add(s);
             }
             else if(op.equals("delete")) {
                 no = scan.nextInt();
                 for(i = 0; i < L.size(); i++) {
                     if(L.get(i).getNo() == no) {
                         L.remove(i);
                     }
                 }
             }
             else if(op.equals("set")) {
                 no = scan.nextInt();
                 score = scan.nextInt();
                 for(i = 0; i < L.size(); i++) {
                     if(L.get(i).getNo() == no) {
                         L.get(i).setScore(score);
                     }
                 }
             }
         }
          
         for(i = 0; i < L.size(); i++) {
             System.out.println(L.get(i));
         }
          
          
         scan.close(); 
    }
 
class Student{
    int no;
    String name;
    int score;
    public Student(int _no, String _name, int _score) {
        no = _no;
        name = _name;
        score = _score;
    }
    public int getNo() {
        return no;
    }
    public String getName() {
        return name;
    }
    public int getScore() {
        return score;
    }
    public void setScore(int sc) {
        score = sc;
    }
    public String toString() {
        return "no:" +no +" name:" +name +" score:" +score;
    }
    public boolean equals(Student s) {
        if(this.no==s.getNo() && this.name.equals(s.getName()) && this.score==s.getScore())
            return true;
        else
            return false;
    }
    public int hashcode() {
        int result = 17;
        result = 31*result + no;
        return result;
    }
}


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