example0501_userinterface.java

java example programed by my teacher

		inf2.setLocation(205,0);
		
		desk=new JDesktopPane();
		desk.add(inf1);
		desk.add(inf2);
		
		Container con=getContentPane();
		con.add(desk);
		
		setSize(600,600);
		setVisible(true);
	}
}

class Texts extends JFrame implements ActionListener
{
	JLabel namep;
	JTextField name;
	JLabel passwp;
	JPasswordField passw;
	JLabel aboutp;
	JTextArea about;
	JPanel panel1;
	JPanel panel2;
	JPanel panel3;
	
	Texts()
	{
		super("文本框");
		setSize(330,400);
		namep=new JLabel("输入姓名");
		name=new JTextField(20);
		panel1=new JPanel();
		panel1.add(namep);
		panel1.add(name);
		passwp=new JLabel("输入密码");
		passw=new JPasswordField(20);
		passw.addActionListener(this);
		panel2=new JPanel();
		panel2.add(passwp);
		panel2.add(passw);
		ImageIcon icon=new ImageIcon("java.gif");
		aboutp=new JLabel("说明",icon,JLabel.RIGHT);
		about=new JTextArea(10,20);
		JScrollPane sp=new JScrollPane(about);
		panel3=new JPanel();
		panel3.add(aboutp);
		panel3.add(sp);
		
		Container con=getContentPane();
		con.add(panel1,"North");
		con.add(panel2,"Center");
		con.add(panel3,"South");
		
		setVisible(true);
	}
	
	public void actionPerformed(ActionEvent e)
	{
		about.append(name.getText());
	}
}

class Buttons extends JFrame implements ActionListener
{
	JButton butt;
	JCheckBox check;
	JRadioButton red;
	JRadioButton green;
	JRadioButton blue;
	JPanel pane;
	ButtonGroup group;
	
	Buttons()
	{
		super("按钮");
		butt=new JButton("改变背景色");
		butt.addActionListener(this);
		butt.addMouseListener(new MouseAdapter()
		{
			public void mouseEntered(MouseEvent e)
			{
				butt.setToolTipText("鼠标进入，但我不可用了！");
				butt.setEnabled(false);
			}
			public void mouseExited(MouseEvent e)
			{
				butt.setEnabled(true);
				JOptionPane.showMessageDialog(null,"鼠标离开，我又可用了，气死你！");
			}
		});
		check=new JCheckBox("隐藏按钮");
		check.addActionListener(this);
		red=new JRadioButton("红色");
		green=new JRadioButton("绿色");
		blue=new JRadioButton("蓝色");
		red.addActionListener(this);
		green.addActionListener(this);
		blue.addActionListener(this);
		group=new ButtonGroup();
		group.add(red);
		group.add(green);
		group.add(blue);
		pane=new JPanel();
		pane.add(red);
		pane.add(green);
		pane.add(blue);
		pane.setBorder(BorderFactory.createLineBorder(Color.gray,2));
		Container con=getContentPane();
		FlowLayout lay=new FlowLayout();
		lay.setVgap(20);
		con.setLayout(lay);
		con.add(butt);
		con.add(check);
		con.add(pane);
		setSize(200,150);
		setVisible(true);
	}
	
	public void actionPerformed(ActionEvent e)
	{
		Object t=e.getSource();
		if (t==butt)
		{
			Random r=new Random();
			butt.setBackground(new Color(r.nextInt(255),r.nextInt(255),r.nextInt(255)));
		}
		if (t==check)
		{
			boolean s=check.isSelected();
			butt.setVisible(!s);
		}
		if (t==red)
		{
			butt.setForeground(Color.red);
		}
		if (t==green)
		{
			butt.setForeground(Color.green);
		}
		if (t==blue)
		{
			butt.setForeground(Color.blue);
		}
	}
}

class Comboxs extends JFrame implements ItemListener,ActionListener,ListSelectionListener
{
	JComboBox combox1;
	JComboBox combox2;
	JLabel label1;
	JLabel label2;
	String[] listv={"Red","Green","Blue","Yellow","Cyan","Gray"};
	
	Comboxs()
	{
		super("列表框、组合框");
		combox1=new JComboBox();
		combox1.addItem("项目11");
		combox1.addItem("项目12");
		combox1.addItem("项目13");
		combox1.addItem("项目14");
		combox1.addItem("项目15");
		combox2=new JComboBox();
		combox2.setEditable(true);
		combox2.addItem("项目21");
		combox2.addItem("项目22");
		combox2.addItem("项目23");
		combox2.addItem("项目24");
		combox2.addItem("项目25");
		label1=new JLabel("Item");
		label2=new JLabel("Action");
		combox1.addItemListener(this);
		combox2.addItemListener(this);
		combox1.addActionListener(this);
		combox2.addActionListener(this);
		Container con=getContentPane();
		Box box=Box.createVerticalBox();
		box.add(combox1);
		box.add(combox2);
		box.add(label1);
		box.add(label2);
		JList list=new JList(listv);
		list.addListSelectionListener(this);
		list.setVisibleRowCount(3);
		con.add(box,"North");
		con.add(new JScrollPane(list),"South");
		setSize(600,200);
		setVisible(true);
	}
	
	public void itemStateChanged(ItemEvent e)
	{
		JComboBox b=(JComboBox)e.getSource();
		String s=(String)e.getItem();
		
		if (b==combox1)
		{
			label1.setText("这是不可编辑的，你选择了"+s);
		}
		
		if (b==combox2)
		{
			label1.setText("这是可编辑的，你选择了"+s);
		}
	}
	
	public void actionPerformed(ActionEvent e)
	{
		JComboBox b=(JComboBox)e.getSource();
		String s=(String)e.paramString();
		label2.setText("Action performed!"+s);
	}
	
	public void valueChanged(ListSelectionEvent e)
	{
		int n=((JList)e.getSource()).getSelectedIndex();
		label2.setText("你选择了第 "+n+" 项");
	}
}

class Stddialogs
{
	Stddialogs()
	{
		int ret;
		ret=JOptionPane.showConfirmDialog(null,"How are you?");
		ret=JOptionPane.showConfirmDialog(null,"How are you?","YES_NO_OPTION",JOptionPane.OK_CANCEL_OPTION);
		ret=JOptionPane.showConfirmDialog(null,"How are you?","YES_NO_CANCEL_OPTION",JOptionPane.YES_NO_CANCEL_OPTION);
		ret=JOptionPane.showConfirmDialog(null,"How are you?","ERROR_MESSAGE",JOptionPane.YES_NO_OPTION,JOptionPane.ERROR_MESSAGE);
		ret=JOptionPane.showConfirmDialog(null,"How are you?","INFORMATION_MESSAGE",JOptionPane.YES_NO_OPTION,JOptionPane.INFORMATION_MESSAGE);
		ret=JOptionPane.showConfirmDialog(null,"How are you?","WARNING_MESSAGE",JOptionPane.YES_NO_OPTION,JOptionPane.WARNING_MESSAGE);
		ret=JOptionPane.showConfirmDialog(null,"How are you?","QUESTION_MESSAGE",JOptionPane.YES_NO_OPTION,JOptionPane.QUESTION_MESSAGE);
		ret=JOptionPane.showConfirmDialog(null,"How are you?","PLAIN_MESSAGE",JOptionPane.YES_NO_OPTION,JOptionPane.PLAIN_MESSAGE );

		String input=JOptionPane.showInputDialog(null,"Please input n","100");
		
		JOptionPane.showMessageDialog(null,input,"Hello",JOptionPane.INFORMATION_MESSAGE);
	}
}

class Choosers1 extends JFrame
{
	JLabel result;
	
	Choosers1()
	{
		super("File JChooser");
		setSize(600,200);
		result=new JLabel("disp result");
		Container con=getContentPane();
		con.add(result,"North");
		show();
		operating();
	}
	
	public void operating()
	{
		JFileChooser fc=new JFileChooser();
		fc.setMultiSelectionEnabled(true);
		fc.setFileSelectionMode(JFileChooser.FILES_AND_DIRECTORIES);
		int ret=fc.showDialog(null,"选择");
		if (ret==JFileChooser.APPROVE_OPTION)
		{
			File dir=fc.getCurrentDirectory();
			File file=fc.getSelectedFile();
			result.setText(dir.getAbsolutePath()+"\\"+file.getName());
		}
		fc.showOpenDialog(null);
		fc.showSaveDialog(null);
	}
}

class Choosers2 extends JFrame
{
	JLabel result;
	
	Choosers2()
	{
		super("Color JChooser");
		setSize(200,200);
		result=new JLabel("disp result");
		Container con=getContentPane();
		con.add(result,"North");
		show();
		Color color=JColorChooser.showDialog(null,"Color Chooser",new Color(0,0,255));
		result.setForeground(color);
	}
}

class Bars1 extends JFrame implements ActionListener,Runnable //Runnable用于实现线程
{
	JButton butt;
	JProgressBar pbar;
	
	Bars1()
	{
		super("Bars");
		butt=new JButton("Start");
		butt.addActionListener(this);
		pbar=new JProgressBar(JProgressBar.HORIZONTAL,0,100);
		pbar.setStringPainted(true);
		pbar.setBorderPainted(true);
		Container con=getContentPane();
		con.add(pbar,"North");
		con.add(butt,"Center");
		setSize(600,600);
		setVisible(true);
		pack();
	}
	
	public void actionPerformed(ActionEvent e)
	{
		Thread t=new Thread(this);
		t.start();
	}
	
	public void run()
	{
		for (int i=0;i<=100;i++)
		{
			try{
				Thread.sleep(50);
			}
			catch (InterruptedException ee)
			{
			}
			pbar.setValue(i);
		}
	}
}

class Timers extends JFrame implements ActionListener
{
	javax.swing.Timer timer;
	JLabel dispt;
	
	Timers()
	{
		super("计时器");
		timer=new javax.swing.Timer(1000,this);
		Font f=new Font("黑体",Font.BOLD,36);
		dispt=new JLabel();
		dispt.setHorizontalAlignment(JLabel.CENTER);
		dispt.setFont(f);
		dispt.setForeground(Color.RED);
		setSize(600,200);
		getContentPane().add(dispt);
		setVisible(true);
		timer.start();
	}
	
	public void actionPerformed(ActionEvent e)
	{
		dispt.setText(new Date().toString());
	}
}

class Adjusts extends JFrame implements ChangeListener
{
	JSlider slider;
	JSpinner spin;
	
	Adjusts()
	{
		super("滑块、微调器");
		
		slider=new JSlider(0,100,10);
		slider.setMajorTickSpacing(20);
		slider.setMinorTickSpacing(5);
		slider.setPaintTicks(true);
 		slider.setPaintLabels(true);
//		slider.setSnapToTicks(true); //设置是否将滑块吸附在标记上
		slider.addChangeListener(this);
		
		spin=new JSpinner();
		spin.setValue(new Integer(10));
		spin.addChangeListener(this);
		
		Box box=Box.createHorizontalBox();
		box.add(slider);
		box.add(Box.createHorizontalStrut(50));
		box.add(spin);
		
		Container con=getContentPane();
		con.add(box);
		
		setVisible(true);
		pack();
	}
	
	public void stateChanged(ChangeEvent e)
	{
		if (e.getSource()==slider)
		{
			int n=slider.getValue();
			spin.setValue(new Integer(n));
		}
		else
		{
			Integer n=(Integer)spin.getValue();
			slider.setValue(n.intValue());
		}
	}
}

class Popmenus extends JFrame implements ActionListener
{
	JPopupMenu pop;
	
	Popmenus()
	{
		super("弹出菜单");
		setSize(400,400);
		setVisible(true);
		pop=new JPopupMenu();
		JMenuItem item1=new JMenuItem("示例菜单项");
		JMenuItem item2=new JMenuItem("退出");
		item2.addActionListener(this);
		pop.add(item1);
		pop.add(item2);
		addMouseListener(new MouseAdapter()
		{
			public void mousePressed(MouseEvent e)
			{
				if (e.isPopupTrigger())
				{
					pop.show(e.getComponent(),e.getX(),e.getY());
				}
			}
			public void mouseReleased(MouseEvent e)
			{
				if (e.isPopupTrigger())
				{
					pop.show(e.getComponent(),e.getX(),e.getY());
				}
			}
		});
	}
	
	public void actionPerformed(ActionEvent e)
	{
		dispose();
	}
}

class Trees extends JFrame implements TreeSelectionListener
{
	JTree tree;
	JTextArea text;
	
	public Trees()
	{
		setTitle("简单的树");
		setSize(300, 600);
		DefaultMutableTreeNode root=new DefaultMutableTreeNode("济南大学");
		DefaultMutableTreeNode school=new DefaultMutableTreeNode("信息学院");
		root.add(school);
		DefaultMutableTreeNode dept=new DefaultMutableTreeNode("计算机系");
		school.add(dept);
		DefaultMutableTreeNode staff=new DefaultMutableTreeNode("应用教研室");
		dept.add(staff);
		staff=new DefaultMutableTreeNode("理论教研室");
		dept.add(staff);
		dept=new DefaultMutableTreeNode("基础教学部");
		school.add(dept);
		staff=new DefaultMutableTreeNode("文化基础教研室");
		dept.add(staff);
		school=new DefaultMutableTreeNode("教务处");
		root.add(school);
		dept=new DefaultMutableTreeNode("教务科");
		school.add(dept);
		dept=new DefaultMutableTreeNode("教学科");
		school.add(dept);
		tree=new JTree(root);
		tree.setEditable(true);
		tree.putClientProperty("JTree,lineStyle","Angled");
		tree.setShowsRootHandles(true);
		tree.addTreeSelectionListener(this);
		DefaultTreeCellRenderer r=new DefaultTreeCellRenderer();
		r.setLeafIcon(new ImageIcon("java.gif"));
		r.setBackground(Color.BLUE);
		r.setTextSelectionColor(Color.yellow);
//		tree.setCellRenderer(r); //设置渲染
		text=new JTextArea(10,30);
		JScrollPane sptree=new JScrollPane(tree);
		JScrollPane sptext=new JScrollPane(text);
		JSplitPane sp=new JSplitPane(JSplitPane.VERTICAL_SPLIT,true,sptree,sptext);
		Container con=getContentPane();
		con.add(sp);
		setVisible(true);
	}
	
	public void valueChanged(TreeSelectionEvent e)
	{
		DefaultMutableTreeNode snode=(DefaultMutableTreeNode)tree.getLastSelectedPathComponent();
		if (snode!=null && snode.toString()=="应用教研室")
		{
			text.setText("欢迎光临计算机应用教研中心！");
		}
	}
}

class Tables extends JFrame implements ActionListener
{
	class TM extends DefaultTableModel
	{
		TM(Object[][] data,Object[] cols)
		{
			super(data,cols);
		}
		
		public Class getColumnClass(int c)
		{
			return getValueAt(0,c).getClass();
		}
	}

	JTable table;
	JButton butt;
	TM model;
	
	Tables()
	{
		super("表格");
		setVisible(true);
		
		Object[][] rows=
		{
			{"张三",new Integer(20),Color.red,new ImageIcon("java.gif")},
			{"李四",new Integer(22),Color.blue,null},
			{"钱五",new Integer(25),Color.green,new ImageIcon("sun.gif")},
		};
		String[] cols={"姓名","年龄","婚否","照片"};
		
//		model=new TM(rows,cols);
		
		table=new JTable(rows,cols);
//		table.setDefaultRenderer(Color.class,new MyRender());
		table.setShowGrid(true);
		table.setGridColor(Color.blue);
		
		butt=new JButton("add");
		butt.addActionListener(this);
		
		Container con=getContentPane();
		con.add(new JScrollPane(table),"North");
		con.add(butt,"South");
		
		pack();
	}
	
	public void actionPerformed(ActionEvent e)
	{
		Object[] o={"张三",new Integer((int)(Math.random()*25)),Color.cyan,new ImageIcon("java.gif")};
		model.addRow(o);
	}
	
	class MyRender implements TableCellRenderer
	{
		JPanel p=new JPanel();
		public Component getTableCellRendererComponent(JTable table,Object value,boolean isSelected,boolean hasFocus,int row,int col)
		{
			p.setBackground((Color)value);
			return p;
		}
	}
}