java图形界面实验报告

1、java图形界面实验报告河南工业大学实验报告专业班级：计科F1401 学号：姓名：实验单元八【实验目的】1、掌握?程序设计方法2、掌握?程序设计方法3、掌握?程序设计方法4、掌握?程序设计方法5、掌握使用?？程序设计方法。【实验环境】安装了jdk软件的PC机。【实验内容】第18章、图形界面。【程序功能内容说明】设置标签的显示字体、大小背景及颜色。【实验程序原码】import java.awt.Dimension ;import java.awt.Color ;import java.awt.Font ;import java.awt.Point ;import javax.swing.JLab

2、el ;import javax.swing.JFrame ;public class JLabelDemo02public static void main(String args)JFrame frame = new JFrame(Welcome To MLDN) ;JLabel lab = new JLabel(MLDN,JLabel.CENTER) ; / 实例化标签对象Font fnt = new Font(Serief,Font.ITALIC + Font.BOLD,28) ;lab.setFont(fnt) ;frame.add(lab) ; / 将组件件入到面板之中Dimens

3、ion dim = new Dimension() ;frame.setBackground(Color.WHITE) ;/设置窗体的背景颜色dim.setSize(200,70) ;frame.setSize(dim) ;Point point = new Point(300,200) ; / 设置坐标frame.setLocation(point) ;frame.setVisible(true) ;【实验结果】【该程序关键技术说明】JFrame作为基本容器用于创建窗口。JLabel作为标签组件用于在窗口上的显示。【程序功能内容说明】设置GridLayout用于加入按钮。【实验程序原码】im

4、port java.awt.GridLayout ;import javax.swing.JFrame ;import javax.swing.JButton ;public class GridLayoutDemo01public static void main(String args)JFrame frame = new JFrame(Welcome To MLDN) ;frame.setLayout(new GridLayout(3,5,3,3) ;JButton but = null ;for(int i=0;ibut = new JButton(按钮-+ i) ;frame.add

5、(but) ;frame.pack() ;frame.setVisible(true) ;【实验结果】【该程序关键技术说明】按钮组件JButton用于定义按钮。GridLayout布局管理器用于摆放多个按钮。【程序功能内容说明】用户登录系统。【实验程序原码】import java.awt.event.WindowAdapter ;import java.awt.event.ActionListener ;import java.awt.event.WindowEvent ;import java.awt.event.ActionEvent ;import java.awt.Color ;imp

6、ort java.awt.GridLayout ;import java.awt.Font ;import javax.swing.JFrame ;import javax.swing.JButton ;import javax.swing.JLabel ;import javax.swing.JTextField ;import javax.swing.JPasswordField ;import javax.swing.JPanel ;class LoginCheckprivate String name ;private String password ;public LoginChec

7、k(String name,String password)/doc/4e903817d5bbfd0a7856732e.html = name ;this.password = password ;public boolean validate()if(lixinghua.equals(name)&mldn.equals(password) return true ;elsereturn false ;class ActionHandleprivate JFrame frame = new JFrame(Welcome To MLDN) ;priv

8、ate JButton submit = new JButton(登陆);private JButton reset = new JButton(重置);private JLabel nameLab = new JLabel(用户名：) ;private JLabel passLab = new JLabel(密码：) ;private JLabel infoLab = new JLabel(用户登陆系统) ;private JTextField nameText = new JTextField(10) ;private JPasswordField passText = new JPass

9、wordField() ;private JPanel pan = new JPanel() ;public ActionHandle()Font fnt = new Font(Serief,Font.ITALIC + Font.BOLD,12) ;infoLab.setFont(fnt) ; / 设置标签的显示文字submit.addActionListener(new ActionListener()public void actionPerformed(ActionEvent e)if(e.getSource()=submit)String tname = nameText.getTex

10、t() ;String tpass = new String(passText.getPassword() ;LoginCheck log = new LoginCheck(tname,tpass) ;if(log.validate()infoLab.setText(登陆成功，欢迎光临！) ;elseinfoLab.setText(登陆失败，错误的用户名或密码！) ;) ;reset.addActionListener(new ActionListener()public void actionPerformed(ActionEvent e)if(e.getSource()=reset)nam

11、eText.setText() ;passText.setText() ;infoLab.setText(用户登陆系统) ;) ;frame.addWindowListener(new WindowAdapter()public void windowClosing(WindowEvent e)System.exit(1) ;) ; / 加入事件frame.setLayout(null) ;nameLab.setBounds(5,5,60,20) ;passLab.setBounds(5,30,60,20) ;infoLab.setBounds(5,65,220,30) ;nameText.s

12、etBounds(65,5,100,20) ;passText.setBounds(65,30,100,20) ;submit.setBounds(165,5,60,20) ;reset.setBounds(165,30,60,20) ;frame.add(nameLab) ;frame.add(passLab) ;frame.add(infoLab) ;frame.add(nameText) ;frame.add(passText) ;frame.add(submit) ;frame.add(reset) ;frame.setSize(280,130) ;frame.setBackgroun

13、d(Color.WHITE) ;frame.setLocation(300,200) ;frame.setVisible(true) ;public class MyActionEventDemo03public static void main(String args)new ActionHandle() ;【实验结果】【该程序关键技术说明】JFame、JLabel、JButton等综合应用，实现窗口的显示、输入、按钮等。【程序功能内容说明】建立表格。【实验程序原码】import java.awt.event.WindowAdapter ;import java.awt.event.Wind

14、owEvent ;import javax.swing.JTable ;import javax.swing.JScrollPane ;import javax.swing.JFrame ;public class JTableDemo01public static void main(String args)JFrame frame = new JFrame(Welcome To MLDN) ;String titles = 姓名,年龄,性别,数学成绩,英语成绩,总分,是否及格 ;Object userInfo = 李兴华,30,男,89,97,186,true ,李康,23,女,90,93

15、,183,false ; / 定义数据JTable table = new JTable(userInfo,titles) ; / 建立表格JScrollPane scr = new JScrollPane(table) ;frame.add(scr) ;frame.setSize(370,90) ;frame.setVisible(true) ;frame.addWindowListener(new WindowAdapter()public void windowClosing(WindowEvent e)System.exit(1) ;) ;【实验结果】【该程序关键技术说明】JTable

16、建立表格。【程序功能内容说明】编写程序，在文本框中输入一个浮点型华氏温度，根据下面的公式将其转化成摄氏温度。摄氏温度=（华氏温度-32）*5/9【实验程序原码】import java.awt.GridLayout;import java.awt.Container;import java.awt.event.ActionEvent;import java.awt.event.ActionListener;import java.awt.event.WindowAdapter;import java.awt.event.WindowEvent;import javax.swing.JFrame;

17、import javax.swing.JLabel;import javax.swing.JButton;import javax.swing.JTextField;import javax.swing.JPanel;class ActionHandleprivate JFrame frame = new JFrame(温度转换);private Container cont = frame.getContentPane();private JPanel pan = new JPanel(new GridLayout(2,2);private JPanel pan1 = new JPanel(

18、new GridLayout(2,1,3,10);private JTextField huashi = new JTextField(30);private JTextField sheshi = new JTextField(=(华氏-32)*5/9,20);private JLabel huashiLab = new JLabel(请输入华氏温度值：);private JLabel sheshiLab = new JLabel(转换后的摄氏温度值：);private JButton but = new JButton(开始转换);public ActionHandle()frame.ad

19、dWindowListener(new WindowAdapter()public void windowClosing(WindowEvent arg0)System.exit(1););but.addActionListener(new ActionListener()public void actionPerformed(ActionEvent arg0)if(arg0.getSource()=but)String temp = +(Float.parseFloat(huashi.getText()-32)*5/9;sheshi.setText(temp););pan.add(huash

20、iLab);pan.add(huashi);pan.add(sheshiLab);pan.add(sheshi);pan1.add(pan);pan1.add(but);cont.add(pan1);frame.setSize(400,150);frame.setLocation(300, 200);frame.pack();frame.setVisible(true);public class Temperation public static void main(String args)new ActionHandle();【实验结果】【该程序关键技术说明】向JFrame上加入组件。JLa

21、bel显示信息。JButton定义一个按钮。GirdLayout布局管理器。Action类的应用。【程序功能内容说明】编写程序，在文本框中输入英文字母，再根据大写字母按钮和小写字母按钮将输入的内容进行转换，并将转换的内容显示在标签上。【实验程序原码】import java.awt.Container;import java.awt.GridLayout;import java.awt.event.ActionEvent;import java.awt.event.ActionListener;import javax.swing.JButton;import javax.swing.JFram

22、e;import javax.swing.JLabel;import javax.swing.JPanel;import javax.swing.JTextField;class CharConvertprivate JFrame frame = new JFrame(字母大小写转换);private Container cont = frame.getContentPane();private JPanel pan = new JPanel(new GridLayout(3,2);private JTextField sourceText = new JTextField(30);priva

23、te JTextField targetText = new JTextField();private JLabel toUpperLabel = new JLabel(请输入一串英文字母：);private JLabel toLowerLabel = new JLabel(转换后的结果是：);private JButton toUpperBut = new JButton(大写字母按钮);private JButton toLowerBut = new JButton(小写字母按钮);public CharConvert()toUpperBut.addActionListener(new ActionListener()public void actionPerformed(ActionEvent arg0)if(arg0.getSource()=toUpperBut)String temp = sourceText.getText().toUpperCase();targetText.setText(temp););toLowerBut.addActionListener(new ActionListener()public void actionPerformed(ActionEvent arg0)if(arg0.getSou