今天进行了Java补测,题目比较简单,得了满分
代码如下
package com.exam;
//*班级:信2305-1
// 学号:20234102
// 姓名:孙艺伟 */import java.util.Scanner;class Student {private String stunumber; //存储学生的学号(有8位数字组成)private String name; //存储学生的姓名private int age; //存储学生的年龄private boolean sex; //存储学生的性别,男生为false,女生为trueprivate double score; //存储学生的成绩public Student() {}public Student(String stunumber, String name, int age, boolean sex, double score) {this.stunumber = stunumber;this.name = name;this.age = age;this.sex = sex;this.score = score;}public String getStunumber() {return stunumber;}public void setStunumber(String stunumber) {this.stunumber = stunumber;}public String getName() {return name;}public void setName(String name) {this.name = name;}public int getAge() {return age;}public void setAge(int age) {this.age = age;}public boolean isSex() {return sex;}public void setSex(boolean sex) {this.sex = sex;}public double getScore() {return score;}public void setScore(double score) {this.score = score;}}class StudentManager{Scanner scanner = new Scanner(System.in);private Student[] arr = new Student[5];private int iCount = 0;public void showMenu() {while (true) {System.out.println("***********************************************************");System.out.println(" 石家庄铁道大学软件工程系学生信息管理系统");System.out.println("***********************************************************");System.out.println("1、遍历输出学生信息");System.out.println("2、新学生信息录入");System.out.println("3、删除学生信息");System.out.println("4、修改学生信息");System.out.println("5、查询学生信息");System.out.println("***********************************************************");System.out.println("请输入选项:");int iChoice = scanner.nextInt();switch (iChoice) {case 1:showStudent(); //打印输出所有的学生信息break;case 2:addStudent(); //增加一名新学生的信息,需要判断学号是否重复,如果重复提示用户,并禁止增加新学生信息break;case 3:deleteStudent(); //删除一名学生信息(将该学生所有信息清空)break;case 4:updateStudent(); //修改学生信息break;case 5:selectStudent(); //查询并且输出该名学生的全部信息break;default:System.out.println("该选项不存在,请重新输入。");break;}}}public void showStudent() //遍历输出{for (int i = 0; i < iCount; i++) {Student stu = arr[i];System.out.println((i + 1) + ".学号:" + stu.getStunumber() +" 姓名:" + stu.getName() +" 年龄:" + stu.getAge() +" 性别:" + stu.isSex() +" 成绩:" + stu.getScore());}}public void addStudent() //添加学生信息{System.out.print("学号:");String number = scanner.next();for (int i = 0; i < iCount; i++) {if (arr[i].getStunumber().equals(number)) {System.out.println("学号重复,无法添加学生信息。");return;}}System.out.print("姓名:");String name = scanner.next();System.out.print("年龄:");int age = scanner.nextInt();scanner.nextLine();System.out.print("性别(男:false,女:true):");boolean sex = scanner.nextBoolean();System.out.print("成绩:");double score = scanner.nextDouble();scanner.nextLine();if (iCount < arr.length) {arr[iCount++] = new Student(number, name, age, sex, score);System.out.println("学生信息添加成功。");} else {System.out.println("学生信息已满,无法添加新学生。");}}public void deleteStudent() //删除学生信息{System.out.print("输入想要删除的学生学号");String stunumber = scanner.next();for (int i = 0; i < iCount; i++) {if (arr[i].getStunumber().equals(stunumber)) {arr[i] = null; // 清空学生信息System.arraycopy(arr, i + 1, arr, i, iCount - i - 1); // 移动数组arr[--iCount] = null; // 末尾置空System.out.println("学生信息删除成功。");return;}}System.out.println("未找到该学号的学生信息。");}public void updateStudent() //修改学生信息{System.out.print("请输入要修改的学号: ");String stunumber = scanner.next();for (int i = 0; i < iCount; i++) {if (arr[i].getStunumber().equals(stunumber) == false) {System.out.println("学号不存在,无法修改学生信息。");return;}}System.out.print("请输入新姓名: ");String name = scanner.next();System.out.print("请输入新年龄: ");int age = scanner.nextInt();System.out.print("请输入新性别(男:false,女:true): ");boolean sex = scanner.nextBoolean();System.out.print("请输入新成绩: ");double score = scanner.nextDouble();for (int i = 0; i < iCount; i++) {if (arr[i].getStunumber().equals(stunumber)) {arr[i].setName(name);arr[i].setAge(age);arr[i].setSex(sex);arr[i].setScore(score);System.out.println("学生信息修改成功。");return;}}System.out.println("未找到该学号的学生信息。");}public void selectStudent() //查询学生信息{System.out.print("请输入要查询的学号: ");String stunumber = scanner.next();for (int i = 0; i < iCount; i++) {if (arr[i].getStunumber().equals(stunumber)) {System.out.println("学号:" + arr[i].getStunumber() +" 姓名:" + arr[i].getName() +" 年龄:" + arr[i].getAge() +" 性别:" + arr[i].isSex() +" 成绩:" + arr[i].getScore());return;}}System.out.println("未找到该学号的学生信息。");}}class Main {public static void main(String[] args) {StudentManager s = new StudentManager();s.showMenu();}}