用java编写学生信息管理系统

用java编写学生信息管理系统

import .*;

import

import .*;

import .*;

import .*;

class Stude nt impleme nts

String nu mber, name,specialty,grade,borth,sex;

public Stude nt(){};

public void setNumber(Stri ng nu mber){ =nu mber;}

public String getNumber(){ retur n nu mber;}

public void setName(Stri ng n ame){ =n ame;}

public String getName(){ retur n n ame;}

public void setSex(Stri ng sex){ =sex;}

public String getSex(){ retur n sex;}

public void setSpecialty(Stri ng specialty){ =specialty;}

public String getSpecialty(){ retur n specialty;}

public void setGrade(Stri ng grade){ =grade;}

public String getGrade(){ retur n grade;}

public void setBorth(Stri ng borth){ =borth;}

public Stri ng getBorth(){ retur n borth;}

}

public class Stude ntMa nager exte nds JFrame{

JLabel lb=new JLabel ("录入请先输入记录，查询、删除请先输入学号，修改是对查询 ”

+

"内容改后的保存！ ”)；

static JTextField Jnu mber, Jn ame,Jspecialty,Jgrade,Jborth;

static JRadioButt on boy,girl;

static Butt on Group group=nu II;

static JButton Log in, select,delete,update,show;

static JPa nel p1,p2,p3,p4,p5,p6,pv,ph;

static Stude nt stude nt=n ull;

static Hashtable Shashtable=nu II;

static File file=n ull;

static File In putStream inOne=n ull;

static Object In putStream in Two=n ull;

static FileOutputStream out One=n ull;

static ObjectOutputStream outTwo=n ull;

public Stude ntMa nager(){

super("学生基本信息管理系统”)；

Jnu mber =new JTextField(10);

Jname =new JTextField(10); Jspecialty=new JTextField(10); Jgrade=new JTextField(10);

Jborth=new JTextField(10); group=new ButtonGroup(); boy=new JRadioButton(" 男 ",true);

girl=new JRadioButton(" 女 ",false); (boy);

(girl);

Login=new JButton(" 录入 "); select=new JButton(" 查询 "); delete=new JButton(" 删除

"); update=new JButton(" 修改 "); show=new JButton(" 显示 "); (new InputAct());

(new InquestAct());

(new ModifyAct());

(new DeleteAct());

(new ShowAct());

(false); p1=new JPanel();

(new JLabel("学号:",)；

(Jnumber); p2=new JPanel()； (new JLabel("姓名:",);

(Jname)； p3=new JPanel();

(new JLabel("性别:",);

(boy);

(girl);

p4=new JPanel();

(new JLabel("专业:",);

(Jspecialty); p5=new JPanel();

(new JLabel("年级:",);

(Jgrade); p6=new JPanel();

(new JLabel("出生:",);

(Jborth); pv=new JPanel();

(new GridLayout(6,1));

(p1);

(p2);

(p3);

(p4);

(p5);

(p6);

ph=new JPanel();

(Login);

(select);

(update);

(delete);

(show);

file=new File(" 学生信息 .txt");

Shashtable=new Hashtable();

if(!()){

try{

FileOutputStream out=new FileOutputStream(file);

ObjectOutputStream objectOut=new ObjectOutputStream(out); (Shashtable);

();

();

}

catch(IOException e){}

}

Container con=getContentPane();

(new BorderLayout());

(lb, ;

(pv, ;

(ph, ;

setDefaultCloseOperation(EXIT_ON_CLOSE);

setBounds(100,100,600,300);

setVisible(true);

}

public static void main(String[] args) {new StudentManager();}

class InputAct implements ActionListener{

public void actionPerformed(ActionEvent e){

(false);

String number="";

number=();

if()>0){

try{

inOne=new FileInputStream(file);

inTwo=new ObjectInputStream(inOne);

Shashtable=(Hashtable)();

();

();

}

catch(Exception ee){" 创建散列表出现问题！ ");} if(number)){

String warning=" 该生信息已存在，请到修改页面修改！ (null,warning," 警告 ",

J

}quals(” 男")){(true);}

else{(true);}

}

else{

(false);

String warning=" 该学号不存在！ ";

(null,warning,

"警告 ",;

}

}

else{

(false);

String warning=" 必须输入学号！ ";

(null,warning,

"警告 ",;

}

}

}

class ModifyAct implements ActionListener{ public void actionPerformed(ActionEvent e){

String number=();

String name=();

String specialty=();

String grade=();

String borth=();

String sex=null;

if()){sex=();}

else{sex=();}

Student 学生 =new Student();

学生 .setNumber(number);

学生 .setName(name);

学生 .setSpecialty(specialty);

学生 .setGrade(grade);

学生 .setBorth(borth);

学生 .setSex(sex);

try{

outOne=new FileOutputStream(file);

outTwo=new ObjectOutputStream(outOne);

(number, 学生 );

(Shashtable);

();

();

(null);

(null);

(null);

(null);

(null);

}

catch(Exception ee){

"录入修改出现异常 !");

(false);

}

}

}

class DeleteAct implements ActionListener{

public void actionPerformed(ActionEvent e){

(false);

String number=();

if()>0){