赞
踩
package lesson.l10_oop; /** * Illustration * * @author DengQing * @version 1.0 * @datetime 2022/7/1 9:57 * @function */ public class Student { int number; int state; int score; public static final int NUM = 20; public static void main(String[] args) { // 对象数组 Student[] students = new Student[NUM]; for (int i = 0; i < NUM; i++) { // 给数组元素赋值 students[i] = new Student(); // 给Student对象的属性赋值 students[i].number = i + 1; // [1-9]:(_9-1+1)+1 students[i].state = (int) (Math.random() * 9) + 1; // [0-100] students[i].score = (int) (Math.random() * 99); } Student student = new Student(); // 查找学生信息 student.searchState(students, 3); // 冒泡排序 student.bubbleSort(students); student.print(students); } // 查找学生信息 public void searchState(Student[] students, int state) { System.out.println(state + "年纪的学生信息:"); for (Student s : students) { if (s.state == state) { System.out.print(s.toString() + "\n"); } } } // 打印数组 public void print(Student[] students) { for (Student s : students) { System.out.println(s.toString()); } } //冒泡排序 public void bubbleSort(Student[] students) { System.out.println("冒泡排序:"); for (int i = 0; i < students.length - 1; i++) { for (int j = 0; j < students.length - 1 - i; j++) { if (students[j].score > students[j + 1].score) { Student temp = students[j]; students[j] = students[j + 1]; students[j + 1] = temp; } } } } //交换 public void exchange(Student a, Student b) { a.number = a.number ^ b.number; b.number = a.number ^ b.number; a.number = a.number ^ b.number; a.state = a.state ^ b.state; b.state = a.state ^ b.state; a.state = a.state ^ b.state; a.score = a.score ^ b.score; b.score = a.score ^ b.score; a.score = a.score ^ b.score; } //打印Student @Override public String toString() { return "Student{" + "number=" + number + ", state=" + state + ", score=" + score + '}'; } }
Copyright © 2003-2013 www.wpsshop.cn 版权所有,并保留所有权利。