淮海工学院java实验二

淮海工学院

计算机工程学院

实验报告书

课程名：《面向对象程序设计A》

题目：实验二Java面向对象编程初步(2)______ 班级：____软嵌151

学号：2015123352

姓名：韩吉_

一.实验目的

(1)通过实验，进一步掌握类的定义，尤其是类中方法（包含构造方法）的定义。掌握对象的创建方法及对象成员变量和方法的调用；(2)通过编写图形界面的程序，完成对象的创建和调用;(3)能够通过类图来描述程序中类的结构。

二. 实验内容及要求

(1)定义教师类Teacher，包含属性工号，姓名，性别，所在部门，职称，职位，专业，学历；定义若干个构造方法，完成对象的各种初始化需要；定义若干个分别能够获取和修改成员变量的方法，如获取工号/修改工号;获取学历/修改学历等；定义toString()方法，能够输出教师的所有相关信息。(40分)

(2)编写字符界面的程序，能够创建若干个教师对象，并输出教师的相关信息；(20分)

(3)要求在报告中能够画出类图来描述类的结构(15分)

(4)编写图形界面的程序，能够创建若干个教师对象，并输出教师的相关信息。(25分)

可以参照实验指导书中第二个实验的最后一个程序示例。

三. 实验步骤

public class Teacher {

String number;//工号

String teachername;//姓名

int age; //年龄

String sex; //性别

String degree;//学位

String title;//职称

String position;//职位

String depart;//部门

String major;//专业

static String collegeName = "淮海工学院";

Teacher(String number){

this.number = number;

}

Teacher(String number,Stringteachername){

this(number);

this.teachername = teachername;

}

Teacher(String number,Stringteachername,int age){

this(number, teachername);

this.age = age;

}

Teacher(String number,Stringteachername,intage,String sex){

this(number, teachername, age);

this.sex = sex;

}

Teacher(String number,Stringteachername,intage,Stringsex,String degree){ this(number, teachername, age,sex);

this.degree = degree;

}

Teacher(String number,Stringteachername,intage,Stringsex,Stringdegree,String title){ this(number, teachername, age, sex, degree);

this.title = title;

}

Teacher(String number,Stringteachername,intage,Stringsex,Stringdegree,Stringtitle,String position){

this(number, teachername, age, sex, degree,title);

this.position = position;

}

Teacher(String

number,Stringteachername,intage,Stringsex,Stringdegree,Stringtitle,Stringposition,String depart){

this(number, teachername, age, sex, degree, title, position);

this.depart = depart;

}

Teacher(String

number,Stringteachername,intage,Stringsex,Stringdegree,Stringtitle,Stringposition,Stringdepa rt,String major){

this(number, teachername, age, sex, degree, title, position, depart);

this.major = major;

}

public void setdegree(String newdegree){

degree = newdegree;

}

public void settitle(String newtitle){

title = newtitle;

}

public void setposition(String newposition){

position = newposition;

}

public void Setdepart(String newdepart){

depart = newdepart;

}

public static String getCollegeName(){

return collegeName;

}

public static void setCollegeName(String newCollegeName){

collegeName=newCollegeName;

}

public String toString(){

return "工号:" + number + ";姓名:" + teachername + ";年龄:" + age + ";性别:" + "" + sex + ";学位:" + degree + ";专业: " + major + ";职称:" + title +

";职位:" + position + "所在部门:" + depart + ";所在大学" + collegeName;

}

}

import java.util.Scanner;

public classtestTeacher

{

public static void main(String args[])

{

int count=0;

Scanner scanner=new Scanner(System.in);

Teacher[] teachers =new Teacher[80];

//创建Teacher对象，表示汪老师

Teacher wang = new Teacher("1996000021","汪前进",45,"男"," 硕士","软件工程","副教授","系主任","软件工程系");

teachers[count++] = wang;

//创建Teacher对象，表示张老师

Teacher zhang = new Teacher("2006000037","张键",38,"男"," 博士","计算机硬件","副教授","处长","计算机科学系");

teachers[count++] = zhang;

//创建Teacher对象，表示董老师

Teacher dong = new Teacher("1981000038"," 董剑利",58,"男","硕士","数据结构","教授","班主任","软件工程系");

teachers[count++] = dong;

//创建Teacher对象，表示戴老师

Teacher dai = new Teacher("2008000053","戴志强",40,"男"," 博士","机械自动化","副教授","副院长","机械工程系");

teachers[count++] = dai;

//创建Teacher对象，表示樊老师

Teacher fan = new Teacher("2002000018","樊玲",35,"女"," 硕士","法学","讲师","辅导员","软件工程系");

teachers[count++] = fan;

//创建Teacher对象，表示李老师

Teacher li = new Teacher("2009000035","李志敏",34,"女"," 博士","船舶与海洋","副教授","副院长","海洋工程系");

teachers[count++] = li;

//输出所有的教师的信息

count--;

for(inti=0;i <= count;i++)

System.out.println(teachers[i]);

//以下按姓名查找老师

System.out.println("请输入待查找的老师姓名:");

while(scanner.hasNextLine())

{

boolean find = false;

String teacherName = scanner.nextLine();

for(inti=0;i <= count;i++)

{

if(teachers[i].teachername.contains(teacherName))

{ find=true;

System.out.println("找到"+teacherName);

System.out.println(teachers[i]);

}

}

if(find==false)

System.out.println("未找到该教师!!");

}

}

}

publicclass Teacher

{

String tno; //教师工号

String tname; //教师姓名

int age; //年龄

String tsex; //性别

String tdegree; //学位

String ttitle; //职称

String tdept; //所在部门

static String collegeName="淮海工学院";

//定义了若干个构造函数，相互可以调用

Teacher(String tno)

{ this.tno=tno; }

Teacher(String tno,String tname)

{ this(tno);

this.tname=tname;

}

Teacher(String tno,String tname,int age)

{ this(tno,tname);

this.age=age;

}

Teacher(String tno,String tname,int age,String tsex)

{ this(tno,tname,age);

this.tsex=tsex;

}

Teacher(String tno,String tname,int age,String tsex,String tdegree)

{ this(tno,tname,age,tsex);

this.tdegree=tdegree;

}

Teacher(String tno,String tname,int age,String tsex,String tdegree,String ttitle) { this(tno,tname,age,tsex,tdegree);

this.ttitle=ttitle;

}

Teacher(String

tno,String tname,int age,String tsex,String tdegree,String ttitle,String tdept) { this(tno,tname,age,tsex,tdegree,ttitle);

this.tdept=tdept;

}

publicvoid setDegree(String newDegree)

{

tdegree=newDegree;

publicvoid setTitle(String newTitle)

{

ttitle=newTitle;

}

publicstatic String getCollegeName()

{

return collegeName;

}

publicstaticvoid setCollegeName(String newCollegeName)

{

collegeName=newCollegeName;

}

public String toString()

{

return"工号:"+tno+";姓名:"+tname+";年龄:"+age+";性别:"+tsex+";学

位:"+tdegree+";\n 职称:"+ttitle+";所在部门"+tdept+";所在大学

"+collegeName;

}

}

import java.awt.*;

import javax.swing.*;

import java.awt.event.*;

class myFrame extends JFrame implements ActionListener

{

JLabel lblTno,lblTname,lblTage,lblTsex,lblTdegree,lblTtitle,lblTdept;

JTextField txtTno,txtTname,txtTage,txtTsex,txtTdegree,txtTtitle,txtTdept

JButton btnCreate,btnSearch,btnshowAll;

JLabel prompt;

JTextArea jta;

ButtonGroup group = new ButtonGroup();

JRadioButton radio1 = new JRadioButton("男");

JRadioButton radio2 = new JRadioButton("女");

Teacher[] teachers=new Teacher[80];

int count=0;

myFrame()

{

setTitle("创建教师对象，并查找");

setLayout(new FlowLayout());

setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

lblTno=new JLabel("请输入工号:");

txtTno=new JTextField(10);

add(lblTno); add(txtTno);

lblTname=new JLabel("请输入姓名:");

txtTname=new JTextField(10);

add(lblTname); add(txtTname);

lblTage=new JLabel("请输入年龄:");

txtTage=new JTextField(10);

add(lblTage); add(txtTage);

// lblTsex=new JLabel("请输入性别:");

// txtTsex=new JTextField(10);

// add(lblTsex); add(txtTsex);

add(new JLabel("性别: "));

group.add(radio1);

group.add(radio2);

add(radio1);

add(radio2);

lblTdegree=new JLabel("请输入学位:");

txtTdegree=new JTextField(10);

add(lblTdegree); add(txtTdegree);

lblTtitle=new JLabel("请输入职称:");

txtTtitle=new JTextField(10);

add(lblTtitle); add(txtTtitle);

lblTdept=new JLabel("请输入部门:");

txtTdept=new JTextField(10);

add(lblTdept); add(txtTdept);

btnCreate=new JButton("创建教师");

btnSearch=new JButton("按姓名查询教师");

btnshowAll=new JButton("显示所有教师");

add(btnCreate);add(btnSearch);add(btnshowAll);

prompt=new JLabel(" ");

jta=new JTextArea(40,60);

add(prompt);add(jta);

btnCreate.addActionListener(this);

btnSearch.addActionListener(this);

btnshowAll.addActionListener(this);

}

publicvoid actionPerformed(ActionEvent e)

{

if(e.getSource() == btnCreate)

{

String sex = new String();

if (radio1.isSelected())

{

sex = radio1.getText().toString();

}

else

{

sex = radio2.getText().toString();

}

Teacher teacher = new Teacher(txtTno.getText(), txtTname.getText(), Integer.parseInt(txtTage.getText()), sex, txtTdegree.getText(),

txtTtitle.getText(), txtTdept.getText());

teachers[count++] = teacher;

prompt.setText("成功创建" + "第" + count + "个教师!!!");

}

if(e.getSource() == btnshowAll&&count> 0)

{

jta.setText(" ");

for(int i = 0; i

{

jta.append(teachers[i] + "\n");

}

}

if(e.getSource() == btnSearch)

{

jta.setText(" ");

boolean find = false;

String teacherName = txtTname.getText();

for(int i = 0; i

if(teachers[i].tname.equals(teacherName))

{

find = true;

prompt.setText("找到" + teacherName);

jta.append(teachers[i] + "\n");

}

if(find == false)

{

prompt.setText("未找到该教师!!!");;

}

}

}

}

publicclass testTeacher

{

publicstaticvoid main(String args[])

{

myFrame mf=new myFrame();

mf.setSize(800,600);

mf.setVisible(true);

}

}

四.实验结果(请自己补充完整)

五．实验的分析体会(请自己补充完整)

对于此次试验，本来要求较简单，老师也把代码发给学生，但我本来想将职称之类弄成下拉菜单，但做好后发现无法读入选中的内容，我也不会。如下:

附上错误代码:

import java.awt.*;

import javax.swing.*;

import java.awt.event.*;

import java.awt.CheckboxGroup;

import java.awt.Checkbox;

import java.awt.CheckboxMenuItem;

class myFrame extends JFrame implements ActionListener

{

// String txtTsex,txtTdegree,txtTtitle,txtTdept;

JLabel lblTno,lblTname,lblTage;

JTextField txtTno,txtTname,txtTage;

JButton btnCreate,btnSearch,btnshowAll;

JLabel prompt;

JTextArea jta;

JComboBox comBox1,comBox2,comBox3;//下拉菜单

ButtonGroup group;

JRadioButton radio1,radio2;

Teacher[] teachers=new Teacher[80];

int count=0;

myFrame()

{

setTitle("创建教师对象，并查找");

setLayout(new FlowLayout());

setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

lblTno=new JLabel("请输入工号:");

txtTno=new JTextField(10);

add(lblTno); add(txtTno);

lblTname=new JLabel("请输入姓名:");

txtTname=new JTextField(10);

add(lblTname); add(txtTname);

lblTage=new JLabel("请输入年龄:");

txtTage=new JTextField(10);

add(lblTage); add(txtTage);

add(new JLabel("性别: "));

group = new ButtonGroup();

radio1 = new JRadioButton("男");

radio2 = new JRadioButton("女");

group.add(radio1);

group.add(radio2);

add(radio1);

add(radio2);

// txtTsex = group.getSelection().toString();

add(new JLabel("学位:"));

comBox1 = new JComboBox();

comBox1.addItem(" 本科 ");

comBox1.addItem(" 硕士 ");

comBox1.addItem(" 博士 ");

add(comBox1);

// txtTdegree = comBox1.getSelectedItem().toString();

add(new JLabel("职称: "));

comBox2 = new JComboBox();

comBox2.addItem(" 助教 ");

comBox2.addItem(" 讲师 ");

comBox2.addItem(" 副教授 ");

comBox2.addItem(" 教授 ");

add(comBox2);

// txtTtitle = comBox2.getSelectedItem().toString();

add(new JLabel("所在部门: ;"));

comBox3 = new JComboBox();

comBox3.addItem(" 计算机工程系 ");

comBox3.addItem(" 机械工程系 ");

comBox3.addItem(" 法学系 ");

comBox3.addItem(" 药学系");

comBox3.addItem(" 电子系 ");

comBox3.addItem(" 商学系 ");

comBox3.addItem(" 艺术系 ");

comBox3.addItem(" 文学系 ");

comBox3.addItem(" 外语系 ");

comBox3.addItem(" 历史系 ");

add(comBox3);

// txtTdept = comBox3.getSelectedItem().toString();

btnCreate=new JButton("创建教师");

btnSearch=new JButton("按姓名查询教师");

btnshowAll=new JButton("显示所有教师");

add(btnCreate);add(btnSearch);add(btnshowAll);

prompt=new JLabel(" ");

jta=new JTextArea(40,60);

add(prompt);add(jta);

btnCreate.addActionListener(this);

btnSearch.addActionListener(this);

btnshowAll.addActionListener(this);

}

publicvoid actionPerformed(ActionEvent e)

{

if(e.getSource()==btnCreate)

{

//根据用户的输入，创建Teacher对象

Teacher

teacher=new Teacher(txtTno.getText(),txtTname.getText(),Integer.parseInt(txt Tage.getText()));

teachers[count++]=teacher;

prompt.setText("成功创建"+"第"+count+"个教师!!");

}

if(e.getSource()==btnshowAll&&count>0)

{

jta.setText(" ");

for(int i=0;i

jta.append(teachers[i]+"\n");

}

if(e.getSource()==btnSearch)

{ jta.setText(" ");

boolean find=false;

String teacherName=txtTname.getText();

for(int i=0;i

if(teachers[i].tname.equals(teacherName))

{ find=true;

prompt.setText("找到"+teacherName);

jta.append(teachers[i]+"\n");

}

if(find==false)

prompt.setText("未找到该教师!!");

}

}

}

publicclass windowsforteacher

{

publicstaticvoid main(String args[])

{

myFrame mf=new myFrame();

mf.setSize(800,600); mf.setVisible(true);

}

}