java怎么实现简单学生成绩档案管理系统

今天小编给大家分享一下java怎么实现简单学生成绩档案管理系统的相关知识点，内容详细，逻辑清晰，相信大部分人都还太了解这方面的知识，所以分享这篇文章给大家参考一下，希望大家阅读完这篇文章后有所收获，下面我们一起来了解一下吧。

学生成绩档案管理系统源代码：

student

public class students{    private String name;    private String number;    private int chinascore;    private int mathscore;    private int englishscore;    private int physcore;    public students(String name, String number, int chinascore, int mathscore, int englishscore, int physcore) {        this.name = name;        this.number = number;        this.chinascore = chinascore;        this.mathscore = mathscore;        this.englishscore = englishscore;        this.physcore = physcore;    }    public String getName() {        return name;    }    public void setName(String name) {        this.name = name;    }    public String getNumber() {        return number;    }    public void setNumber(String number) {        this.number = number;    }    public int getChinascore() {        return chinascore;    }    public void setChinascore(int chinascore) {        this.chinascore = chinascore;    }    public int getMathscore() {        return mathscore;    }    public void setMathscore(int mathscore) {        this.mathscore = mathscore;    }    public int getEnglishscore() {        return englishscore;    }    public void setEnglishscore(int englishscore) {        this.englishscore = englishscore;    }    public int getPhyscore() {        return physcore;    }    public void setPhyscore(int physcore) {        this.physcore = physcore;    }}

database

import java.util.ArrayList;import java.util.List;public class database {    List<students> studentsList = new ArrayList<>();    public database() {        studentsList.add(new students("张三", "1", 1, 1, 1, 1));        studentsList.add(new students("李四", "2", 8, 2, 2, 2));        studentsList.add(new students("王五", "3", 1, 3, 3, 3));        studentsList.add(new students("赵六", "4", 6, 4, 4, 4));    }    public List<students> getStudentsList() {        return studentsList;    }    public void setStudentsList(List<students> studentsList) {        this.studentsList = studentsList;    }}

studentdao

import java.util.List;import java.util.Scanner;public class studentdao {    database database;    public studentdao(database dataBase) {        this.database = dataBase;    }    //对全部学生信息打印    public void print() {        List<students> list = database.getStudentsList();        System.out.println("学生学号：" + "学生姓名" + "  语文：" + "数学：" + "英语：" + "物理："+"学生总分");        for (students students : database.getStudentsList()) {            int x=students.getChinascore()+students.getMathscore()+students.getEnglishscore()+students.getPhyscore();            System.out.println("" + students.getNumber() + "     " + students.getName() + "     " + students.getChinascore()                    + "    " + students.getMathscore() + "   " + students.getEnglishscore() + "    " + students.getPhyscore()+"     "+x);        }        for(int i=0;i<=list.size();i++){            int x=list.get(i).getChinascore()+list.get(i).getMathscore() +list.get(i).getEnglishscore()+list.get(i).getPhyscore();            System.out.println((i+1)+list.get(i).getNumber()+list.get(i).getName()+list.get(i).getChinascore()+list.get(i).getMathscore() +list.get(i).getEnglishscore()+list.get(i).getPhyscore() +x);        }    }    //添加新的学生    public void add() {        String number;        String name;        int grade1;        int grade2;        int grade3;        int grade4;        Scanner scanner = new Scanner(System.in);        System.out.println("输入学生的学号：");        number = scanner.next();        System.out.println("输入学生的姓名：");        name = scanner.next();        System.out.println("输入学生的语文成绩：");        grade1 = scanner.nextInt();        System.out.println("输入学生的数学成绩：");        grade2 = scanner.nextInt();        System.out.println("输入学生的英语成绩：");        grade3 = scanner.nextInt();        System.out.println("输入学生的物理成绩：");        grade4 = scanner.nextInt();        students students = new students(name, number, grade1, grade2, grade3, grade4);        List<students> studentsList = database.getStudentsList();        studentsList.add(students);    }    //输入姓名或者学号来查询学生信息    public void searchstudent() {        Scanner scanner = new Scanner(System.in);            findbynumber();    }    //通过输入学号来查询信息    public void findbynumber() {        Scanner scanner = new Scanner(System.in);        System.out.println("输入学生的学号：");        String number = scanner.next();        for (students students : database.getStudentsList()) {            if (students.getNumber().equals(number)) {                System.out.println("学生学号：" + students.getNumber() + "学生姓名：" + students.getName()                        + "语文：" + students.getChinascore() + "数学：" + students.getMathscore()                        + "英语：" + students.getEnglishscore() + "物理：" + students.getPhyscore());            }        }    }    //通过学号来修改科目成绩    public void changescore() {        Scanner scanner = new Scanner(System.in);        System.out.println("输入学号：");        String number = scanner.next();        students students = null;        for (students a : database.getStudentsList()) {            if (a.getNumber().equals(number)) {                students = a;            }        }        if (students != null) {            System.out.println("查找成功！");            System.out.println("学生学号：" + students.getNumber() + "学生姓名：" + students.getName()                    + "语文：" + students.getChinascore() + "数学：" + students.getMathscore()                    + "英语：" + students.getEnglishscore() + "物理：" + students.getPhyscore());            System.out.println("输入要修改的语文的成绩：");            int grade1 = scanner.nextInt();            System.out.println("输入要修改的数学的成绩：");            int grade2 = scanner.nextInt();            System.out.println("输入要修改的英语的成绩：");            int grade3 = scanner.nextInt();            System.out.println("输入要修改的物理的成绩：");            int grade4 = scanner.nextInt();            students.setChinascore(grade1);            students.setMathscore(grade2);            students.setEnglishscore(grade3);            students.setPhyscore(grade4);            System.out.println("修改完成！");            System.out.println("学生学号：" + students.getNumber() + "学生姓名：" + students.getName()                    + "语文：" + students.getChinascore() + "数学：" + students.getMathscore()                    + "英语：" + students.getEnglishscore() + "物理：" + students.getPhyscore());        } else {            System.out.println("未找到该学生!");        }    }    //双向冒泡排序    public List<students> bub(List<students> studentList) {        List<students> list = database.getStudentsList();        students student = null;        int left = 0, right = database.getStudentsList().size() - 1;        while (left < right) {            for (int i = left + 1; i <= right; i++) {                if (list.get(left).getChinascore() + list.get(left).getMathscore() + list.get(left).getEnglishscore() + list.get(left).getPhyscore() < list.get(i).getChinascore() + list.get(i).getMathscore() + list.get(i).getEnglishscore() + list.get(i).getPhyscore()) {                    student = list.get(i);                    list.set(i, list.get(left));                    list.set(left, student);                }            }            left++;            for (int i = right - 1; i >= left; i--) {                if (list.get(right).getChinascore() + list.get(right).getMathscore() + list.get(right).getEnglishscore() + list.get(right).getPhyscore() > list.get(i).getChinascore() + list.get(i).getMathscore() + list.get(i).getEnglishscore() + list.get(i).getPhyscore()) {                    {                        student = list.get(i);                        list.set(i, list.get(right));                        list.set(right, student);                    }                }                right--;            }        }        return list;    }        //希尔排序        public void shellSort () {            List<students> list = database.getStudentsList();            students student = null;            students student1 = null;            int j;            for (int gap = list.size() / 2; gap > 0; gap /= 2) {                for (int i = gap; i < list.size(); i++) {                    student = list.get(i);                    int tmp = student.getChinascore() + student.getMathscore() + student.getEnglishscore() + student.getPhyscore();                    for (j = i; j >= gap && tmp > list.get(j - gap).getChinascore() + list.get(j - gap).getMathscore() + list.get(j - gap).getEnglishscore() + list.get(j - gap).getPhyscore(); j -= gap) {                        list.set(j, list.get(j - gap));                    }                    list.set(j, student);                }            }        }        //快速排序        public void quickSort1 ( int left, int right){            List<students> studentsList = database.getStudentsList();            if (left < right) {                int i = left, j = right;                students student = studentsList.get(left);                int x = student.getChinascore() + student.getMathscore() + student.getEnglishscore() + student.getPhyscore();                while (i < j) {                    while ((i < j) && (studentsList.get(j).getChinascore() + studentsList.get(j).getMathscore() + studentsList.get(j).getEnglishscore() + studentsList.get(j).getPhyscore()) < x) {                        j--;                    }                    if (i < j) {                        studentsList.set(i, studentsList.get(j));                        i++;                    }                    while ((i < j) && (studentsList.get(i).getChinascore() + studentsList.get(i).getMathscore() + studentsList.get(i).getEnglishscore() + studentsList.get(i).getPhyscore() > x)) {                        i++;                    }                    if (i < j) {                        studentsList.set(j, studentsList.get(i));                        j--;                    }                }                studentsList.set(i, student);                quickSort1(left, i - 1);                quickSort1(i + 1, right);            }        }        //堆排序    //移除位在第一个数据的根节点，并做最大堆调整的递归运算public List<students> heapSort(List<students> studentList){    List<students> list=studentList;    int len = list.size();    buildMaxHeap(list, len);    for (int i = len - 1; i > 0; i--) {        swap(list, 0, i);        len--;        heapify(list, 0, len);    }    return list;}//将堆中的所有数据重新排序堆排序（HeapSort）    private void buildMaxHeap(List<students> studentList, int len) {        for (int i = (int) Math.floor(len / 2); i >= 0; i--) {            heapify(studentList, i, len);        }    }    private void heapify(List<students> studentList, int i, int len) {        int left = 2 * i + 1;        int right = 2 * i + 2;        int largest = i;        if (left < len && studentList.get(left).getChinascore() + studentList.get(left).getMathscore() + studentList.get(left).getEnglishscore() + studentList.get(left).getPhyscore()< studentList.get(largest).getChinascore() + studentList.get(largest).getMathscore() + studentList.get(largest).getEnglishscore() + studentList.get(largest).getPhyscore()) {            largest = left;        }        if (right < len && studentList.get(right).getChinascore() + studentList.get(right).getMathscore() + studentList.get(right).getEnglishscore() + studentList.get(right).getPhyscore()< studentList.get(largest).getChinascore() + studentList.get(largest).getMathscore() + studentList.get(largest).getEnglishscore() + studentList.get(largest).getPhyscore()) {            largest = right;        }        if (largest != i) {            swap(studentList, i, largest);            heapify(studentList, largest, len);        }    }    private void swap(List<students> studentList, int i, int j) {        students student=studentList.get(i);        studentList.set(i,studentList.get(j));        studentList.set(j,student);    }    }

service

import java.util.Scanner;public class service {    private studentdao studentdao;    ;    private database database;    public service(database dataBase) {        studentdao = new studentdao(dataBase);        this.database = dataBase;    }    public void start() {        Scanner scanner = new Scanner(System.in);        System.out.println("1.增加学生信息");        System.out.println("2.浏览学生信息");        System.out.println("3.修改学生成绩");        System.out.println("4.排序学生成绩");        System.out.println("5.学生信息查询");        int choice = scanner.nextInt();        switch (choice) {            case 1:                add();                break;            case 2:                studentdao.print();                System.out.println("是否回到主界面0.回到1.不会");                int k=scanner.nextInt();                if(k==0) {                    start();                }                break;            case 3:                changeit();break;            case 4:                rank();                break;            case 5:                search();break;        }    }    //选择排序方式    public void rank(){        System.out.println("1.希尔排序");        System.out.println("2.冒泡排序");        System.out.println("3.快速排序");        System.out.println("4.堆排序");        System.out.println("输入0返回菜单");        Scanner scanner = new Scanner(System.in);        int a=scanner.nextInt();        switch (a){            case 1:                studentdao.shellSort();                studentdao.print();                System.out.println("是否回到主界面0.回到1.不会");                int p=scanner.nextInt();                if(p==0) {                    start();                }                break;            case 2:                studentdao.bub(database.getStudentsList());                studentdao.print();                System.out.println("是否回到主界面0.回到1.不会");                int k=scanner.nextInt();                if(k==0) {                    start();                }                break;            case 3:                studentdao.quickSort1(0,database.getStudentsList().size()-1);                studentdao.print();                System.out.println("是否回到主界面0.回到1.不会");                int o=scanner.nextInt();                if(o==0) {                    start();                }                break;            case 4:                studentdao.heapSort(database.getStudentsList());                studentdao.print();                System.out.println("是否回到主界面0.回到1.不会");                int k1=scanner.nextInt();                if(k1==0) {                    start();                }                break;            case 0:start();                break;        }    }    //查找学生信息    public void search(){        studentdao.searchstudent();        Scanner scanner=new Scanner(System.in);        System.out.println("是否回到主界面0.回到1.不会");        int k=scanner.nextInt();        if(k==0) {            start();        }    }    //更改学生信息    public void changeit(){            studentdao.changescore();        System.out.println("是否回到主界面0.回到1.不会");        Scanner scanner=new Scanner(System.in);        int k=scanner.nextInt();        if(k==0) {            start();        }    }    //增加学生    public void add(){        studentdao.add();        System.out.println("是否回到主界面0.回到1.不会");        Scanner scanner=new Scanner(System.in);        int k=scanner.nextInt();        if(k==0) {            start();        }    }}

text

public class text {    public static void main(String[]args){        database database = new database();        service studentsSer=new service(database);       studentsSer.start();    }}

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