java使用数组编写学生成绩管理系统

㈠ 如何用Java语言编写学生成绩管理系统

写过一个类似的给了你吧

packagestudent;

importjava.util.Scanner;

publicclassteststudent{

	publicstaticvoidmain(Stringargs[]){
		System.out.println("************************学生成绩管理系统*********************");
		System.out.println("请输入要管理的学生人数:");
		Scannersc=newScanner(System.in);
		intn=sc.nextInt();
		studentMassagestum=newstudentMassage(n);
		
		intflag=1;
		while(flag==1){
			System.out.println("1.输入学生信息");
			System.out.println("2.通过姓名查找学生信息");
			System.out.println("3.显示全部学生信息");
			System.out.println("4.退出系统");	
		
		intop=sc.nextInt();
		switch(op){
		case1:stum.addStudent(n);
		newScanner(System.in).nextLine();
		break;
		case2:
			System.out.println("输入学生姓名：");
			Stringname=sc.next();
			stum.FindStudent(name);
			newScanner(System.in).nextLine();
			break;
		case3:
			stum.showallStudent();
			newScanner(System.in).nextLine();
			break;
		case4:
			flag=0;
			System.out.println("已退出系统！");
			break;
	default:
		System.out.println("输入有误！");
		newScanner(System.in).nextLine();
		}
		
		}
	}

}
classDate{
	intyear;
	intmonth;
	intday;
	/*publicDate(intyear,intmonth,intday){
		this.year=year;
		this.month=month;
		this.day=day;
		
	}
	publicDate(){}*/
	publicStringshowDate(){
		returnyear+"/"+month+"/"+day;
	}
}
classstudent{
	intid;
	Stringname;
	Datedate;
	floatscore;
	publicstudent(){
		id=0;
		name=null;
		date=null;
		score=0f;			
	}
	publicvoidshowStudent(){
		System.out.println(id+""+name+""+""+date.showDate()+""+score);
	}
}
classstudentMassage{
	privatestudent[]stu;
	privateintflag;
	publicstudentMassage(intn){
		flag=0;
		if(stu==null){
		stu=newstudent[n];
		for(inti=0;i<n;++i){
				stu[i]=newstudent();
		}
		}
	}
	publicvoidaddStudent(intn){
		flag=1;
		Scannersc=newScanner(System.in);
		System.out.println("请输入"+n+"个学生信息");
		for(inti=0;i<stu.length;++i){
			stu[i].date=newDate();
			System.out.println("请输入第"+(i+1)+"个学生学号：");
			stu[i].id=sc.nextInt();
			System.out.println("请输入第"+(i+1)+"个学生姓名：");
			stu[i].name=sc.next();
			System.out.println("请输入第"+(i+1)+"个学生出生年份：");
			stu[i].date.year=sc.nextInt();
			System.out.println("请输入第"+(i+1)+"个学生出生月份：");
			stu[i].date.month=sc.nextInt();
			System.out.println("请输入第"+(i+1)+"个学生出生日期：");
			stu[i].date.day=sc.nextInt();
			//stu[i].date=newDate(year,month,day);
			System.out.println("请输入第"+(i+1)+"个学生分数：");
			stu[i].score=sc.nextFloat();
		}
	}
	publicvoidFindStudent(Stringsname){
		studentfind=null;
		if(flag!=0){
			for(inti=0;i<stu.length;++i){
				if(sname.equals(stu[i].name))
					find=stu[i];
			}
			if(find==null)
				System.out.println("查无此人！");
			else
				find.showStudent();
		}else
			System.out.println("没有输入学生信息！");
			
	}
	publicvoidshowallStudent(){
		System.out.println("所有学生的信息如下：");
		System.out.println("学号姓名生日分数");
		for(inti=0;i<stu.length;++i){
			stu[i].showStudent();
		}
	}
}

㈡ 速求Java学生成绩管理系统 用数组 不要用数据库

public class Test04
{
public static List<Students> list = new ArrayList<Students>();
public static void main(String[] args)
{
Scanner scan = new Scanner(System.in);
int t;
while(true){
System.out.println("学生成绩管理系统");
System.out.println("1.输入记录");
System.out.println("2.输出所有记录");
System.out.println("3.按平均成绩排序并输出");
System.out.println("4.查找记录");
System.out.println("5.统计个分数段人数");
System.out.println("6.删除记录");
System.out.println("7.退出");
System.out.println("请输入你的操作(1-7):");
String s = scan.nextLine();
if (null==s||"".equals(s))
{
continue;
}else {
t = Integer.parseInt(s);
}
if (0==t)
{
break;
}
}
}
}
class Students{
int id;
String name;
}
后面可以自己做判断，写方法实现

㈢ 利用Java编程实现一个学生成绩管理系统（单机版），此程序如何编写学生求助，需要参考，谢谢！

给一个具体的需求吧，比如这个系统有什么功能

㈣ 求用Java编写的学生成绩管理系统的完整代码，要能运行的

以下方法实现了用户界面登陆
import java.awt.*;
import java.awt.event.*;
public class DengLuJieMian extends Frame implements ActionListener
{
Label username=new Label("用户名：");//使用文本创建一个用户名标签
TextField t1=new TextField();//创建一个文本框对象
Label password=new Label("密码：");//创建一个密码标签
TextField t2=new TextField();
Button b1=new Button("登陆");//创建登陆按钮
Button b2=new Button("取消");//创建取消按钮
public DengLuJieMian()
{
this.setTitle("学生信息管理系统");//设置窗口标题
this.setLayout(null);//设置窗口布局管理器
username.setBounds(50,40,60,20);//设置姓名标签的初始位置
this.add(username);// 将姓名标签组件添加到容器
t1.setBounds(120,40,80,20);// 设置文本框的初始位置
this.add(t1);// 将文本框组件添加到容器
password.setBounds(50,100,60,20);//密码标签的初始位置
this.add(password);//将密码标签组件添加到容器
t2.setBounds(120,100,80,20);//设置密码标签的初始位置
this.add(t2);//将密码标签组件添加到容器
b1.setBounds(50,150,60,20);//设置登陆按钮的初始位置
this.add(b1);//将登陆按钮组件添加到容器
b2.setBounds(120,150,60,20);//设置取消按钮的初始位置
this.add(b2);// 将取消按钮组件添加到容器
b1.addActionListener(this);//给登陆按钮添加监听器
b2.addActionListener(this);// 给取消按钮添加监听器

this.setVisible(true);//设置窗口的可见性
this.setSize(300,200);//设置窗口的大小
addWindowListener(new WindowAdapter()
{
public void windowClosing(WindowEvent e)
{
System.exit(0);
}
});//通过内部类重写关闭窗体的方法
}
public void actionPerformed(ActionEvent e)
{
if(e.getSource()==b1)//处理登陆事件
{
String name=t1.getText();
String pass=t2.getText();
if(name!=null&&pass.equals("000123"))//判断语句
{
new StudentJieMian();
}
}
}
public static void main(String args[])//主函数
{
new DengLuJieMian();
}
}
以下方法实现了学生界面设计
import java.awt.*;
import java.awt.event.*;
class StudentJieMian extends Frame implements ActionListener
{
MenuBar m=new MenuBar();//创建菜单栏
Menu m1=new Menu("信息");//创建菜单“信息”
MenuItem m11=new MenuItem("插入");//创建“插入”的菜单项
MenuItem m12=new MenuItem("查询");
Menu m2=new Menu("成绩");//创建菜单“成绩”
MenuItem m21=new MenuItem("查询");
public StudentJieMian()
{
this.setTitle("学生界面");//设置窗口标题
this.setLayout(new CardLayout());//设置窗口布局管理器
this.setMenuBar(m);//将菜单栏组件添加到容器
m.add(m1);//将信息菜单放入菜单栏
m.add(m2);
m1.add(m11);//将“插入”菜单项添加到“信息”菜单
m1.add(m12); //将“查询”菜单项添加到“信息”菜单
m2.add(m21); //将“查询”菜单项添加到“成绩”菜单
m11.addActionListener(this); //给“插入”菜单项添加监听器
m12.addActionListener(this); //给“查询”菜单项添加监听器
m21.addActionListener(this); //给“查询”菜单项添加监听器
this.setVisible(true); //设置窗口的可见性
this.setSize(300,200); //设置窗口的大小
addWindowListener(new WindowAdapter()
{
public void windowClosing(WindowEvent e)
{
System.exit(0);//关闭窗口
}
});
}
public void actionPerformed(ActionEvent e)
{
if(e.getSource()==m11) //处理“添加信息”事件
{
new AddStudent();
}
if(e.getSource()==m12) //处理“查询信息”事件
{
new SelectStudent();
}
if(e.getSource()==m21) //处理“查询成绩”事件
{
new ChengJiStudent();
}
}
public static void main(String args[])
{ new StudentJieMian(); //创建一个对象 }

㈤ 如何用java来编一个学生成绩管理系统的程序

同意上面的说复法..

你需要一制个IO包.实例化输入输出流.对文件进行输入输出的操作.
你先把这些类文件都写好.这些类文件都很简单.写一个实例,省去一些代码..

public class Person
{
public string studentName;
public string studentAge;
//省略其它成员变量

public void setStudentName(string strName)
{
this.studentName=strName;
}
public string getStudentName()
{
return this.studentName;
}

//其它成员函数类似
}

上面一个类的实例..其他类差不多,然后写一个类.实例化这些类,用文件IO输入输出流,对文件进行操作.这里代码你自己去写,不会网上多的是.

㈥ 如何用Java语言编写学生成绩管理系统

package student;
import java.util.Scanner;

public class teststudent {

public static void main(String args[]){
System.out.println("************************学生成绩管理系统*********************");
System.out.println("请输入要管理的学生人数:");
Scanner sc = new Scanner(System.in);
int n = sc.nextInt();
studentMassage stum = new studentMassage(n);

int flag = 1;
while(flag == 1){
System.out.println("1.输入学生信息");
System.out.println("2.通过姓名查找学生信息");
System.out.println("3.显示全部学生信息");
System.out.println("4.退出系统");

int op = sc.nextInt();
switch(op){
case 1:stum.addStudent(n);
new Scanner(System.in).nextLine();
break;
case 2:
System.out.println("输入学生姓名：");
String name = sc.next();
stum.FindStudent(name);
new Scanner(System.in).nextLine();
break;
case 3:
stum.showallStudent();
new Scanner(System.in).nextLine();
break;
case 4:
flag = 0;
System.out.println("已退出系统！");
break;
default:
System.out.println("输入有误！");
new Scanner(System.in).nextLine();
}

}
}

}
class Date{
int year;
int month;
int day;
/*public Date(int year,int month,int day){
this.year = year;
this.month = month;
this.day = day;

}
public Date(){}*/
public String showDate(){
return year + "/"+ month+"/"+day;
}
}
class student{
int id;
String name;
Date date;
float score;
public student(){
id = 0;
name = null;
date = null;
score = 0f;
}
public void showStudent(){
System.out.println( id + " " + name + " "+ " " + date.showDate()+" "+score);
}
}
class studentMassage{
private student[] stu;
private int flag;
public studentMassage(int n){
flag = 0;
if(stu == null){
stu = new student[n];
for(int i =0;i<n;++i){
stu[i] = new student();
}
}
}
public void addStudent(int n){
flag = 1;
Scanner sc = new Scanner(System.in);
System.out.println("请输入"+n+"个学生信息");
for(int i = 0 ;i<stu.length;++i){
stu[i].date = new Date();
System.out.println("请输入第"+(i+1)+"个学生学号：");
stu[i].id = sc.nextInt();
System.out.println("请输入第"+(i+1)+"个学生姓名：");
stu[i].name = sc.next();
System.out.println("请输入第"+(i+1)+"个学生出生年份：");
stu[i].date.year = sc.nextInt();
System.out.println("请输入第"+(i+1)+"个学生出生月份：");
stu[i].date.month = sc.nextInt();
System.out.println("请输入第"+(i+1)+"个学生出生日期：");
stu[i].date.day = sc.nextInt();
//stu[i].date = new Date(year,month,day);
System.out.println("请输入第"+(i+1)+"个学生分数：");
stu[i].score = sc.nextFloat();
}
}
public void FindStudent(String sname){
student find = null;
if(flag != 0){
for(int i = 0;i<stu.length;++i){
if(sname.equals(stu[i].name))
find = stu[i];
}
if(find == null)
System.out.println("查无此人！");
else
find.showStudent();
}else
System.out.println("没有输入学生信息！");

}
public void showallStudent(){
System.out.println("所有学生的信息如下：");
System.out.println("学号 姓名 生日 分数");
for(int i = 0;i<stu.length;++i){
stu[i].showStudent();
}
}
}

㈦ 用java编写学生管理系统

我也是初学写的不好
public class Student {
static int[] gradesArray={87,68,94,100,83,78,85,91,76,87};
public Student(int[]gradesArray){

}
public void printAllGrade(){
for (int i = 0; i < gradesArray.length; i++) {
System.out.println("学号"+(i+1)+"成绩是"+gradesArray[i]);
}
}
public void printAvarage(){
double sum = 0;
for (int i = 0; i < gradesArray.length; i++) {
sum+=gradesArray[i];
}
System.out.println("\n平均成绩是"+sum/gradesArray.length);
}
public void printMax(){
int max=gradesArray[0];
for (int i = 0; i < gradesArray.length; i++) {
if(gradesArray[i]>max){
max=gradesArray[i];
}
}
System.out.println("\n最高分时"+max);
}
public void printMin(){
int min=gradesArray[0];
for (int i = 0; i < gradesArray.length; i++) {
if (gradesArray[i]<min){
min=gradesArray[i];
}
}
System.out.println("\n最低分时"+min);
}
public void printDistribution(){
int a=0,b=0,c=0,d=0,e=0,f=0,g=0,h=0,j=0,k=0;
for (int i = 0; i < gradesArray.length; i++) {
if(gradesArray[i]<10){
a++;
}else if (gradesArray[i]>=10&&gradesArray[i]<20) {
b++;
}
else if (gradesArray[i]>=20&&gradesArray[i]<30) {
c++;
}
else if (gradesArray[i]>=30&&gradesArray[i]<40) {
d++;
}
else if (gradesArray[i]>=40&&gradesArray[i]<50) {
e++;
}
else if (gradesArray[i]>=50&&gradesArray[i]<60) {
f++;
}
else if (gradesArray[i]>=60&&gradesArray[i]<70) {
g++;
}
else if (gradesArray[i]>=70&&gradesArray[i]<80) {
h++;
}
else if (gradesArray[i]>=80&&gradesArray[i]<90) {
j++;
}
else if (gradesArray[i]>=90&&gradesArray[i]<100) {
k++;
}
}
System.out.println("\n成绩分布是");
System.out.print("0-10：");
for (int i = 0; i <=a; i++) {
System.out.print("*");
}
System.out.print("10-20：");
for (int i = 0; i <=b; i++) {
System.out.print("*");
}
System.out.print("20-30：");
for (int i = 0; i <=c; i++) {
System.out.print("*");
}
System.out.print("30-40：");
for (int i = 0; i <=d; i++) {
System.out.print("*");
}
System.out.print("40-50：");
for (int i = 0; i <=e; i++) {
System.out.print("*");
}
System.out.print("50-60：");
for (int i = 0; i <=f; i++) {
System.out.print("*");
}
System.out.print("60-70：");
for (int i = 0; i <=g; i++) {
System.out.print("*");
}
System.out.print("70-80：");
for (int i = 0; i <=h; i++) {
System.out.print("*");
}
System.out.print("80-90：");
for (int i = 0; i <=j;i++) {
System.out.print("*");
}
System.out.print("90-100：");
for (int i = 0; i <=k; i++) {
System.out.print("*");
}
}
public static void main(String[] args) {
Student student=new Student(gradesArray);
student.printAllGrade();
student.printAvarage();
student.printMax();
student.printMin();
student.printDistribution();
}

}

㈧ 求用Java编写的学生成绩管理系统的完整代码

packagejdbcproj;
importjava.sql.*;
importjava.awt.BorderLayout;
importjava.awt.EventQueue;

importjavax.swing.JFrame;
importjavax.swing.JPanel;
importjavax.swing.border.EmptyBorder;
importjavax.swing.JLabel;
importjavax.swing.JOptionPane;
importjavax.swing.JTextField;
importjavax.swing.JButton;
importjava.awt.event.ActionListener;
importjava.sql.Connection;
importjava.sql.PreparedStatement;
importjava.sql.SQLException;
importjava.awt.event.ActionEvent;

{

	privateJPanelcontentPane;
	privateJTextFieldtxtname;
	privateJTextFieldtxtpassword;

	
	/**
	*Launchtheapplication.
	*/
	publicstaticvoidmain(String[]args){
		.invokeLater(newRunnable(){
			publicvoidrun(){
				try{
					MainFrameframe=newMainFrame();
					frame.setVisible(true);
				}catch(Exceptione){
					e.printStackTrace();
				}
			}
		});
	}

	/**
	*Createtheframe.
	*/
	publicMainFrame(){
		setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		setBounds(100,100,661,399);
		contentPane=newJPanel();
		contentPane.setBorder(newEmptyBorder(5,5,5,5));
		setContentPane(contentPane);
		contentPane.setLayout(null);
		
		JLabellblNewLabel=newJLabel("u7528u6237u540D");
		lblNewLabel.setBounds(114,51,72,18);
		contentPane.add(lblNewLabel);
		
		JLabellblNewLabel_1=newJLabel("u5BC6u7801");
		lblNewLabel_1.setBounds(114,106,72,18);
		contentPane.add(lblNewLabel_1);
		
		txtname=newJTextField();
		txtname.setBounds(261,48,86,24);
		contentPane.add(txtname);
		txtname.setColumns(10);
		
		txtpassword=newJTextField();
		txtpassword.setBounds(261,103,86,24);
		contentPane.add(txtpassword);
		txtpassword.setColumns(10);
		
		JButtonbtnadd=newJButton("u589Eu52A0");
		btnadd.addActionListener(newActionListener(){
			publicvoidactionPerformed(ActionEvente){
				if(txtname.getText().equals("")||txtpassword.getText().equals(""))
				{
					JOptionPane.showMessageDialog(getContentPane(),"用户名和密码不能为空","提示信息框",JOptionPane.WARNING_MESSAGE);
				}
				else{
					Usersu=newUsers();
					u.setPwd(txtpassword.getText());
					u.setUsername(txtname.getText());
					UserDAOusdo=newUserDAO();
					usdo.addUser(u);
				}
			}
		});
		btnadd.setBounds(45,205,113,27);
		contentPane.add(btnadd);
		
		JButtonbtndelete=newJButton("u5220u9664");
		btndelete.addActionListener(newActionListener(){
			publicvoidactionPerformed(ActionEventarg0){
				if(txtname.getText().equals(""))
				{
					JOptionPane.showMessageDialog(getContentPane(),"用户名不能为空","提示信息框",JOptionPane.WARNING_MESSAGE);
				}
				else{
					UserDAOusdo=newUserDAO();
					usdo.delUser(txtname.getText());;
				}
			}
		});
		btndelete.setBounds(172,205,113,27);
		contentPane.add(btndelete);
		
		JButtonbtnupdate=newJButton("u4FEEu6539");
		btnupdate.addActionListener(newActionListener(){
			publicvoidactionPerformed(ActionEvente){
				if(txtname.getText().equals("")||txtpassword.getText().equals(""))
				{
					JOptionPane.showMessageDialog(getContentPane(),"用户名和密码不能为空","提示信息框",JOptionPane.WARNING_MESSAGE);
				}
				else{
					Usersu=newUsers();
					u.setPwd(txtpassword.getText());
					u.setUsername(txtname.getText());
					UserDAOusdo=newUserDAO();
					usdo.updateUser(u);;
				}
			}
		});
		btnupdate.setBounds(300,205,113,27);
		contentPane.add(btnupdate);
		
		JButtonbtnfind=newJButton("u67E5u8BE2");
		btnfind.addActionListener(newActionListener(){
			publicvoidactionPerformed(ActionEvente){
				if(txtname.getText().equals(""))
				{
					JOptionPane.showMessageDialog(getContentPane(),"用户名不能为空","提示信息框",JOptionPane.WARNING_MESSAGE);
				}
				else{
					Usersu=newUsers();
					UserDAOusdo=newUserDAO();
					u=usdo.findUser(txtname.getText(),txtpassword.getText());
					if(u!=null){
						JOptionPane.showMessageDialog(getContentPane(),"该用户存在！","提示信息框",JOptionPane.WARNING_MESSAGE);
					}
					else{
						JOptionPane.showMessageDialog(getContentPane(),"该用户不存在！","提示信息框",JOptionPane.WARNING_MESSAGE);
					}
				}
			}
		});
		btnfind.setBounds(427,205,113,27);
		contentPane.add(btnfind);
		//记得要写这个
		setVisible(true);
	}

}

㈨ java编写学生成绩管理系统

import java.io.FileOutputStream;
import java.io.IOException;
import java.io.ObjectOutputStream;
import java.io.Serializable;
import java.util.ArrayList;
import java.util.List;
import java.util.Scanner;

public class Admin {

public static void main(String[] args) throws IOException, ClassNotFoundException {
Scanner in = new Scanner(System.in);
int studentNum = 5;

List<Student> result = new ArrayList<Student>();
for (int i = 0; i < studentNum; i++) {
Student bean = new Student();
System.out.print("输入第" + (i + 1) + "个学生学号:");
bean.setNo(in.next());
System.out.print("输入第" + (i + 1) + "个学生姓名:");
bean.setName(in.next());
System.out.print("输入第" + (i + 1) + "个学生数学成绩:");
bean.setShuxue(in.nextDouble());
System.out.print("输入第" + (i + 1) + "个学生语文成绩:");
bean.setYuwen(in.nextDouble());
result.add(bean);
}

while (true) {
System.out.println("1.保存到文件;2.总成绩;3.平均成绩;4.不及格比例;5.及格比例;6,优良比例;0.退出.");
int i = in.nextInt();

if (i == 0) {
System.exit(0);
}

if (i == 1) {
save(result);
}

if (i == 2) {
for (int j = 0; j < result.size(); j++) {
Student s = result.get(j);
System.out.println("学生" + s.getName() + "的总成绩是:" + s.all());
}
}

if (i == 3) {
int jigeSum = 0;
for (int j = 0; j < result.size(); j++) {
Student s = result.get(j);
if (!s.isJige()) {
jigeSum++;
}
}
System.out.println("不及格比例:" + jigeSum + "/" + result.size());
}
if (i == 4) {
// 篇幅受限,自行开发
}
if (i == 5) {
// 篇幅受限,自行开发
}
}
}

private static void save(List result) throws IOException {
FileOutputStream fs = new FileOutputStream("d:/a.txt");
ObjectOutputStream os = new ObjectOutputStream(fs);
os.writeObject(result);
os.flush();
os.close();
fs.close();
}
}

class Student implements Serializable {

private String no;

private String name;

private double shuxue;

private double yuwen;

public String getName() {
return name;
}

public void setName(String name) {
this.name = name;
}

public String getNo() {
return no;
}

public void setNo(String no) {
this.no = no;
}

public double getShuxue() {
return shuxue;
}

public void setShuxue(double shuxue) {
this.shuxue = shuxue;
}

public double getYuwen() {
return yuwen;
}

public void setYuwen(double yuwen) {
this.yuwen = yuwen;
}

public double all() {
return shuxue + yuwen;
}

public double avg() {
return all() / 2;
}

public boolean isJige() {
return avg() > 60;
}
}