experiment @ lzptc , 2nd_term_java实验4 Swing组件的使用

实验四 Swing 组件的使用

一、实验目的：

熟悉Swing 组件;

进一步掌握事件响应的处理方法。

二、实验内容：

实验项目㈠

编写程序实现功能如图1 所示。

 

 

 

 

 

 

 

 

 

 

实验项目㈡

编写程序实现功能如图2 所示。

 

三、书写实验报告要求：

①写出源程序清单

②写出运行步骤，记录结果

①     写出实验总结：包括实验做得效果、容易出错的问题、对知识点掌握的情况。

 

 

import javax.swing.*; import java.awt.*; import java.awt.event.*; public class shiyan4 { /** * @param args */ public static void main(String[] args) { // TODO 自动生成方法存根 new JFrame1("User Regedit Information"); new JFrame2("A Window with Menu"); } } //jframe 2 class JFrame2 extends JFrame{ JTextArea area_input=new JTextArea(40,44), area_output=new JTextArea(40,44); JPanel panel_north =new JPanel(), panel_south=new JPanel(); JMenuBar menubar=new JMenuBar(); JMenu menu_file=new JMenu("File"), menu_edit=new JMenu("Edit"); JMenuItem item_all=new JMenuItem("Select All"), item_copy=new JMenuItem("Copy"), item_cut=new JMenuItem("Cut"), item_paste=new JMenuItem("Paster"); JScrollPane scrpane1=new JScrollPane(area_input), scrpane2=new JScrollPane(area_output); public void init(){//frame2 绘制窗口由其init()负责 setLayout(new BorderLayout()); setBounds(555,111,444,544); menu_edit.add(item_all); menu_edit.add(item_copy); menu_edit.add(item_cut); menu_edit.add(item_paste); menubar.add(menu_file); menubar.add(menu_edit); setJMenuBar(menubar); item_all.addActionListener(new ActionListener(){ public void actionPerformed(ActionEvent ae2){ area_input.selectAll(); } }); item_copy.addActionListener(new ActionListener(){ public void actionPerformed(ActionEvent ae2){ area_output.copy(); } }); item_cut.addActionListener(new ActionListener(){ public void actionPerformed(ActionEvent ae2){ area_input.cut(); } }); item_paste.addActionListener(new ActionListener(){ public void actionPerformed(ActionEvent ae2){ area_output.paste(); } }); setLayout(null); scrpane1.setBounds(15,20,300,200); area_input.setBackground(Color.red); scrpane2.setBounds(15,240,300,200); area_output.setBackground(Color.yellow); add(scrpane1); add(scrpane2); setVisible(true); validate(); } JFrame2(String str_title){ super(str_title); init(); } } //jframe 1 class JFrame1 extends JFrame{ JLabel lab_name=new JLabel("Name:"), lab_pwd=new JLabel("Password:"), lab_sex=new JLabel("Sex:"), lab_favourate=new JLabel("Favourate:"), lab_notes=new JLabel("Notes:"); JTextField text_name=new JTextField("",10); JPasswordField text_pwd=new JPasswordField("",10); ButtonGroup bg_sex=new ButtonGroup(); JRadioButton check_male=new JRadioButton("Male"), check_fmale=new JRadioButton("Fmale"); JCheckBox radio_reading=new JCheckBox("Reading"), radio_makefriend=new JCheckBox("Making Friend"), radio_sport=new JCheckBox("Sport"); JTextArea area=new JTextArea(11,33); JButton btn_submit=new JButton("Submit"); JPanel panel_north=new JPanel(), panel_middle=new JPanel(), panel_buttom=new JPanel(); JFrame1(String str_name){ super(str_name); init(); addWindowListener(new WindowAdapter(){ public void windowClosed(){ System.exit(0); } }); btn_submit.addActionListener(new ActionListener(){ public void actionPerformed(ActionEvent ae){ area.setText(""); area.append("Name : "+text_name.getText()+"/n"); if(check_male.isSelected()){ area.append("Sex : "+check_male.getText()+"/n"); } else if(check_male.isSelected()){ area.append("Sex : "+check_male.getText()+"/n"); } String str_fav=""; if(radio_reading.isSelected()){ str_fav=str_fav+radio_reading.getText()+" "; } if(radio_makefriend.isSelected()){ str_fav=str_fav+radio_makefriend.getText()+" "; } if(radio_sport.isSelected()){ str_fav=str_fav+radio_sport.getText()+" "; } area.append("Favourite : "+str_fav+"/n"); } }); } public void init(){//窗口绘制交给init() setBounds(111,111,444,444); setLayout(new BorderLayout()); panel_north.setLayout(new FlowLayout()); panel_middle.setLayout(new FlowLayout()); panel_buttom.setLayout(new FlowLayout()); panel_north.add(lab_name); panel_north.add(text_name); panel_north.add(lab_pwd); panel_north.add(text_pwd); panel_north.add(lab_sex); panel_north.add(check_male); panel_north.add(check_fmale); panel_north.add(lab_favourate); panel_north.add(radio_reading); panel_north.add(radio_makefriend); panel_north.add(radio_sport); bg_sex.add(check_male); bg_sex.add(check_fmale); panel_middle.add(lab_notes); panel_middle.add(area); panel_buttom.add(btn_submit); add(panel_north,BorderLayout.NORTH); add(panel_middle,BorderLayout.CENTER); add(panel_buttom,BorderLayout.SOUTH); text_pwd.setEchoChar('~'); setVisible(true); validate(); } }