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JTree

import java.awt.*; import java.awt.event.*; import javax.swing.*; import javax.swing.event.*; import javax.swing.tree.*; public class JTreeDemo1 implements TreeModelListener{ JLabel label = null; String nodeName = null;//原有節點名稱 public JTreeDemo1(){ JFrame jf = new JFrame("JTr ...
import java.awt.*; import java.awt.event.*; import javax.swing.*; import javax.swing.event.*; import javax.swing.undo.*; import javax.swing.text.*; public class JTextAreaDemo3 extends JFrame implements UndoableEditListener,DocumentListener{ private UndoableEdit edit; private JTextAre ...
import java.awt.*; import java.awt.event.*; import javax.swing.*; import javax.swing.event.*; import javax.swing.table.*; import java.util.*; public class JTableDemo7 implements ActionListener{ JTable table = null; DefaultTableModel defaultModel = null; JButton button1,button2,butt ...
import java.awt.*; import java.awt.event.*; import javax.swing.*; import javax.swing.event.*; import javax.swing.table.*; public class JTableDemo4 implements ActionListener{ JTable table = null; JButton button1,button2; public JTableDemo4(){ JFrame jf = new JFrame(); button1 ...
import java.awt.*; import java.awt.event.*; import javax.swing.*; import javax.swing.event.*; import javax.swing.table.*; public class JTableDemo4 implements ActionListener{ JTable table = null; JButton button1,button2; public JTableDemo4(){ JFrame jf = new JFrame(); button1 ...

問題麥克風

剛買的一個耳機,拿到辦公室一試,結果麥克風不能用,從網上找了一大堆資料,也沒解決問題。拿到同事的本本上試了下,結果可以用。這說明麥克風是好的。回到自己機上,仔細查了下,發現有兩個選項前面板與后面板(前面板插孔不能用)。把前面板的去掉竟然就可以了。。。 哎。。。原先以為兩個都選上就能多一分保證呢。。。結果費了我半天時間。。。
import java.awt.*; import java.awt.event.*; import javax.swing.*; import javax.swing.event.*; public class JComboBoxDemo3 { String[] s = {"西瓜","蘋果","草莓","香蕉"}; public JComboBoxDemo3(){ JFrame jf = new JFrame(); Container contentPane = jf.getC ...

JComboBox

JComboBox(ComboModel):可以繼承AbstractListModel和實現ComboBoxModel;重寫getSize() getElementAT()  getSelectedItem() 和setSelectedItem()。 當然也可以直接繼承DefaultComboBoxModel,這樣就不需要重寫以上的四個方法了。 import java.awt.*; import java.awt.event.*; import javax.swing.*; import javax.swing.event.*; public class JComboBoxDemo2 ...
import java.awt.*; import java.awt.event.*; import javax.swing.*; import javax.swing.event.*; public class JListDemo7 extends MouseAdapter{ JList list = null; JList list2 = null; DefaultListModel mode = null; DefaultListModel mode2= null; String[] s ={"美國","日本",&qu ...
import java.awt.*; import java.awt.event.*; import javax.swing.*; import javax.swing.event.*; public class JListDemo5 { public JListDemo5(){ String[] s = {"美國","日本","中國","英國","法國"}; JFrame jf = new JFrame(); Container contentPane ...
JLsit(ListModel mode):其中ListModel可以是:     ListModel接口:要重寫addListDataListener() removeListDataListener() getSize()  getElementAt()方法     AbstractListModel抽象類:要重寫getSize()  getElementAt()方法     DefaultListModel類:不需要重寫任何方法,而且DefaultListModel具有Vector功能,可以addElement()  removeElement()  getElementAt()  cop ...
import javax.swing.*; import java.awt.*; import java.awt.event.*; import java.awt.geom.AffineTransform; import java.util.ArrayList; import java.util.HashMap; /** * A JTabbedPane which has a close ('X') icon on each tab. * To add a tab, use the method addTab(String, Component) * To have an ex ...
import java.awt.*; import java.awt.event.*; import javax.swing.*; public class JInternalFrameDemo1 extends JFrame implements ActionListener{ JDesktopPane desktopPane; int count = 1; public JInternalFrameDemo1(){ super("JInternalFrameDemo1"); Container contentPane = this. ...
import java.awt.*; import java.awt.event.*; import javax.swing.*; public class JLayeredPaneDemo1 extends JFrame { public JLayeredPaneDemo1(){ super("JLayeredPaneDemo1"); Integer[] layerConstants = {JLayeredPane.DEFAULT_LAYER,JLayeredPane.PALETTE_LAYER,new Integer(101), J ...
import java.awt.*; import java.awt.event.*; import javax.swing.*; import java.util.*; public class MouseDemo4 extends JFrame implements MouseMotionListener,MouseListener{ int startx,starty,endx,endy; Vector<Rectangle> rectangles = new Vector<Rectangle>(); public MouseDemo4() ...
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