学生管理系统代码

将每个*****到*********之间的代码拷贝后缀为.Java文件，然后导入到MyEclipse里面即可..作者：梅强强（QQ：826219395）
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import java.util.zip.DataFormatException;
public abstract class Person implements IMyExtends{

private int pid; //成员编号
private String pname; //成员姓名
private int page; //成员年龄
private byte psex; //成员性别

public int getPid() {
return pid;
}

public void setPid(int pid) {
this.pid = pid;
}

public String getPname() {
return pname;
}

public void setPname(String pname) {
this.pname = pname;
}

public int getPage() {
return page;
}

public void setPage(int page) {
this.page = page;
}

public byte getPsex() {
return psex;
}

public void setPsex(byte psex) {
this.psex = psex;
}

//方法空实现
public abstract void callCard() throws DataFormatException;

//方法空实现
public abstract void display();

}
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import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.util.Scanner;

public class InputOperator implements IDataRead {

private Student[] stu;
private Teacher[] tea;

private static int stuLength; //记录学员全局个数
private static int teaLength; //记录教师全局个数

public Student[] getStu() {
return stu;
}

public Teacher[] getTea() {
return tea;
}

public void stuInput(){

int lengths = 5;
int flag = 0;
int i = 0;

Scanner scan = new Scanner(System.in);
stu = new Student[lengths];
do {

stu[i] = new Student();

System.out.println();
System.out.printf("请输入第%d个学员的信息\n", i + 1);
System.out.print("学员编号:");
stu[i].setPid(scan.nextInt());

System.out.print("学员姓名:");
stu[i].setPname(scan.next());

System.out.print("学员年龄:");
stu[i].setPage(scan.nextInt());

System.out.print("学员性别(1:男 0：女):");
stu[i].setPsex(scan.nextByte());

System.out.print("学员成绩:");
stu[i].setCourse(scan.nextFloat());

i++;

System.out.println();
System.out.print("是否继续?<1:继续 0:返回>:");
flag = scan.nextInt();

} while (flag == 1);
stuLength = i; //记录学员个数

}

public void teaInput(){

int lengths = 0;
int flag = 0;
int i = 0;

Scanner scan = new Scanner(System.in);
System.out.println("请输入教师的个数：");
lengths = scan.nextInt();
tea = new Teacher[lengths];
do {

tea[i] = new Teacher();

System.out.println();
System.out.printf("请输入第%d个教师的信息\n", i + 1);
System.out.print("教师编号:");
tea[i].setPid(scan.nextInt());

System.out.print("教师姓名:");
tea[i].setPname(scan.next());

System.out.print("教师年龄:");
tea[i].setPage(scan.nextInt());

System.out.print("教师性别(1:男 0：女):");
tea[i].setPsex(scan.nextByte());

System.out.print("教师工资:");
tea[i].setSalary(scan.nextFloat());

i++;

System.out.println();
System.out.print("是否继续?<1:继续 0:返回>:");
flag = scan.nextInt();

} while (flag == 1);
teaLength = i; //记录教师个数

}

public void stuRead(){

BufferedReader br = null;
try {
String str;

int lengths = this.getLength("e:\\Student.java");
br = new BufferedReader(new FileReader("e:\\Student.java"));
stu = new Student[lengths];

for (int i=0;i<lengths;i++) {
stu[i] = new Student();

if((str=br.readLine())!=null){
stu[i].setPid(Integer.parseInt(str));
}
if((str=br.readLine())!=null){
stu[i].setPname(str);
}
if((str=br.readLine())!=null){
stu[i].setPage(Integer.parseInt(str));
}
if((str=br.readLine())!=null){
stu[i].setPsex(Byte.parseByte(str));
}
if((str=br.readLine())!=null){
stu[i].setCourse(Float.parseFloat(str));
}

}

System.out.println("");
System.out.println("学员数据正在加载，请稍后......");
try {
Thread.sleep(5000);
} catch (InterruptedException e) {
e.printStackTrace();
}
System.out.println("");
System.out.println("耶！学员数据加载成功，请继续操作！");
System.out.println("");
}catch (IOException e) {
System.out.println("找不到文件");

}
}

public void teaRead(){

BufferedReader br = null;
try {
String str;

int lengths = this.getLength("e:\\Teacher.java");
br = new BufferedReader(new FileReader("e:\\Teacher.java"));
tea = new Teacher[lengths];

for (int i=0;i<lengths;i++) {
tea[i] = new Teacher();

if((str=br.readLine())!=null){
tea[i].setPid(Integer.parseInt(str));
}
if((str=br.readLine())!=null){
tea[i].setPname(str);
}
if((str=br.readLine())!=null){
tea[i].setPage(Integer.parseInt(str));
}
if((str=br.readLine())!=null){
tea[i].setPsex(Byte.parseByte(str));
}
if((str=br.readLine())!=null){
tea[i].setSalary(Float.parseFloat(str));
}

}

System.err.println();
System.out.println("");
System.out.println("教师数据正在加载，请稍后......");
try {
Thread.sleep(5000);
} catch (InterruptedException e) {
e.printStackTrace();
}
System.out.println("");
System.out.println("耶！教师数据加载成功，请继续操作！");
System.out.println("");
}catch (IOException e) {
System.out.println("找不到文件");

}
}

public int getLength(String path){

String str;
int lengths = 0;
BufferedReader br = null;

try {
br = new BufferedReader(new FileReader(path));
while((str=br.readLine())!=null){
lengths++;
}
lengths = lengths/5;
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}

return lengths;
}

}
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import java.io.BufferedWriter;
import java.io.FileWriter;
import java.io.IOException;
import java.util.Scanner;

public class OutputOperator implements IDataWrite {

private Student[] stu;
private Teacher[] tea;
private InputOperator input;

public OutputOperator(){

}

public OutputOperator(InputOperator input){
this.input = input;
}

public void stuOutput() {

String sexo;
Scanner scan = new Scanner(System.in);
stu = input.getStu();

System.out.println();
System.out.println("\t\t\t学员信息输出");
System.out.println("\t*****************************************");
System.out.println("\t编号\t姓名\t年龄\t性别\t成绩");
for (int i = 0; i < stu.length; i++) {

// 排除空值
if (stu[i] != null) {
if (stu[i].getPsex() == 1) {
sexo = "男";
}else {
sexo = "女";
}

System.out.printf("\t%d\t%s\t%d\t%s\t%.2f\n", stu[i].getPid(),stu[i].getPname(),
stu[i].getPage(),sexo,stu[i].getCourse());
}
}

}

public void teaOutput() {

String sexo;
Scanner scan = new Scanner(System.in);
tea = input.getTea();

if(tea == null){
System.out.println("当前没有教师信息输出...");
}else{
System.out.println();
System.out.println("\t\t\t教师信息输出");
System.out.println("\t*****************************************");
System.out.println("\t编号\t姓名\t年龄\t性别\t工资");
for (int i = 0; i < tea.length; i++) {

// 排除空值
if (tea[i] != null) {
if (tea[i].getPsex() == 1) {
sexo = "男";
}else {
sexo = "女";
}

System.out.printf("\t%d\t%s\t%d\t%s\t%.2f\n", tea[i].getPid(),tea[i].getPname(),
tea[i].getPage(),sexo,tea[i].getSalary());
}
}
}
}

public void stuWrite(){

BufferedWriter bw = null;
stu = input.getStu();
try {
bw = new BufferedWriter(new FileWriter("e:\\Student.java"));
String []s = new String[stu.length];

for(int i=0;i<stu.length;i++){

if(stu[i] != null){
s[i] = stu[i].getPid() + "";
bw.write(s[i]);
bw.newLine();

s[i] = stu[i].getPname();
bw.write(s[i]);
bw.newLine();

s[i] = stu[i].getPage() + "";
bw.write(s[i]);
bw.newLine();

s[i] = stu[i].getPsex() + "";
bw.write(s[i]);
bw.newLine();

s[i] = stu[i].getCourse() + "";
bw.write(s[i]);
bw.newLine();
}

}
bw.flush();

System.out.println("");
System.out.println("学员数据正在保存，请稍后......");
try {
Thread.sleep(3000);
} catch (InterruptedException e) {
e.printStackTrace();
}
System.out.println("");
System.out.println("耶！学员数据保存成功，请继续操作！");
System.out.println("");

} catch (IOException e) {
e.printStackTrace();
}
}

public void teaWrite(){

BufferedWriter bw = null;
tea = input.getTea();
try {
bw = new BufferedWriter(new FileWriter("e:\\Teacher.java"));

String []s = new String[tea.length];

for(int i=0;i<tea.length;i++){

if(tea[i] != null){
s[i] = tea[i].getPid() + "";
bw.write(s[i]);
bw.newLine();

s[i] = tea[i].getPname();
bw.write(s[i]);
bw.newLine();

s[i] = tea[i].getPage() + "";
bw.write(s[i]);
bw.newLine();

s[i] = tea[i].getPsex() + "";
bw.write(s[i]);
bw.newLine();

s[i] = tea[i].getSalary() + "";
bw.write(s[i]);
bw.newLine();
}

}
bw.flush();

System.out.println("");
System.out.println("教师数据正在保存，请稍后......");
try {
Thread.sleep(3000);
} catch (InterruptedException e) {
e.printStackTrace();
}
System.out.println("");
System.out.println("耶！教师数据保存成功，请继续操作！");
System.out.println("");

} catch (IOException e) {
e.printStackTrace();
}
}

}
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import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Scanner;
import java.util.zip.DataFormatException;

public class Student extends Person{

private float course; //学员成绩

private static InputOperator input;
private static OutputOperator output;

public float getCourse() {
return course;
}

public void setCourse(float course) {
this.course = course;
}

@Override
public void display() {

int xs;// 定义选择

Scanner scans = new Scanner(System.in);
System.out.println();
System.out.println("\t\t\t学员管理菜单");
System.out.println("\t******************************************");
System.out.println("\t1.输入信息\t2.输出信息\t3.学员打卡");
System.out.println("\t4.保存信息\t5.读取信息\t0.返回主页");
System.out.println();
System.out.print("  请选择:");
xs = scans.nextInt();// 输入选择

if (xs == 1) {
input = new InputOperator();
input.stuInput(); //学员信息输入

this.display();
}else if (xs == 2) {
output = new OutputOperator(input);
output.stuOutput(); //学员信息输出

this.display();
}else if (xs == 3) {
try {
this.callCard(); //学员打卡
} catch (DataFormatException e) {
e.printStackTrace();
}

this.display();
}else if (xs == 4) {
output = new OutputOperator(input);
output.stuWrite(); //学员信息保存

this.display();
}else if (xs == 5) {

input = new InputOperator();
input.stuRead(); //学员信息读取

this.display();
}else {
return;
}
}

@Override
public void callCard() throws DataFormatException{

Date dNow = new Date();
SimpleDateFormat formatter = new SimpleDateFormat("yyyy.MM.dd E a 'at' hh:mm:ss");

Student[] stu = input.getStu();

for (int i = 0; i < stu.length; i++) {

if(stu[i] != null){

System.out.println("学员打卡ID: " + stu[i].getPid());
System.out.println("学员打卡时间: " + formatter.format(dNow));
}

}

}

}
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import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Scanner;
import java.util.zip.DataFormatException;

public class Teacher extends Person{

private float salary;
private static InputOperator input;
private static OutputOperator output;

public float getSalary() {
return salary;
}

public void setSalary(float salary) {
this.salary = salary;
}

public void display() {

int xt;// 定义选择

Scanner scans = new Scanner(System.in);
System.out.println();
System.out.println("\t\t\t教师管理菜单");
System.out.println("\t******************************************");
System.out.println("\t1.输入信息\t2.输出信息\t3.教师打卡");
System.out.println("\t4.保存信息\t5.读取信息\t0.返回主页");
System.out.println();
System.out.print("  请选择:");
xt = scans.nextInt();// 输入选择

if (xt == 1) {
input = new InputOperator();
input.teaInput(); //教师信息输入

this.display();
}else if (xt == 2) {
output = new OutputOperator(input);
output.teaOutput(); //教师信息输出

this.display();
}else if (xt == 3) {
try {
this.callCard(); //教师打卡
} catch (DataFormatException e) {
e.printStackTrace();
}

this.display();
}else if (xt == 4) {
output = new OutputOperator(input);
output.teaWrite(); //教师信息保存

this.display();
}else if (xt == 5) {
input = new InputOperator();
input.teaRead(); //教师信息读取

this.display();
}else {
return;
}
}

@Override
public void callCard() throws DataFormatException{

Date dNow = new Date();
SimpleDateFormat formatter = new SimpleDateFormat("yyyy.MM.dd E a 'at' hh:mm:ss");

Teacher[] tea = input.getTea();

for (int i = 0; i < tea.length; i++) {

if(tea[i] != null){

System.out.println("教师打卡ID: " + tea[i].getPid());
System.out.println("教师打卡时间: " + formatter.format(dNow));
}

}

}
}
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import java.util.zip.DataFormatException;



public interface IMyExtends {

public void display(); //菜单方法
public void callCard() throws DataFormatException; //打卡方法
}
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public interface IDataRead {

public void stuRead(); //读取学员数据方法
public void teaRead(); //读取教师数据方法
}
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public interface IDataWrite {

public void stuWrite(); //保存学员数据方法
public void teaWrite(); //保存教师数据方法
}
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import java.util.Scanner;

public class SystemMenu {

private InputOperator input;
private OutputOperator output;
private Student s;
private Teacher t;

public void display(){

int x;// 定义选择
Scanner scan = new Scanner(System.in);
System.out.println();
System.out.println("\t\t\t信息管理系统");
System.out.println("\t*****************************************");
System.out.println("\t1.学员管理\t2.教师管理\t0.程序退出");
System.out.println();
System.out.print("\t请选择:");
x = scan.nextInt();// 输入选择

if (x == 1) {
s = new Student();
s.display();

this.display();
}else if (x == 2) {
t = new Teacher();
t.display();

this.display();
}else {
System.out.println();
System.out.println("\t欢迎下次使用,再见!");
}
}
}
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public class TestMain {

public static void main(String[] args) {

SystemMenu menu = new SystemMenu();
menu.display();
}

}

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