itemlistener

import java awt.*;import java awt event.*;import java applet. Applet;import java applet. AudioClip; public class LX_Thread extends Applet implementsItemListener,ActionListener{AudioClip sound;Choice c=new Choice();Button play=new Button("播放");Button loop=new Button("连续");Button stop=new Button("�止"); public void init(){c add("t wav"); c add("y wav"); c add("yd wav");add(c);c addItemListener(this);add(play);add(loop);add(stop); play addActionListener(this);loop addActionListener(this);stop addActionListener(this); sound=getAudioClip(getCodeBase(),"t wav");sound play(); public void itemStateChanged(ItemEvent e){sound play();//sound=getAudioClip(getCodeBase(),c getSelectedItem());//"WAV/"+ public void actionPerformed(ActionEvent e){if(e getSource()==play) sound play();else if(e getSource()==loop) sound loop();else if (e getSource()==stop) sound stop();}}

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��� �야기를 나누는 공간입니다. Posted 2007/11/07 10:14. Filed under: //현재 선�� 패� 번호 index = choice getSelectedIndex(); : http://mysilpir net/trackback/272 2008/03/13 02:59 나는 너� 합�한다 �다. 그것� �렇게 �다. 2008/03/13 06:34 너는 아름다운 웹사�트가 있는다! 2008/03/13 07:26 너는 아주 좋� 보는 위치가 있는다! 2008/03/13 08:11 우수한 �! �사! 2008/03/13 08:53 중대한 위치 축하!경�롭 위치! ��� �야기를 나누는 공간입니다. Total 86388 hit (Today 154. Yesterday 319)

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��� �야기를 나누는 공간입니다. Posted 2007/11/07 10:14. Filed under: //현재 선�� 패� 번호 index = choice getSelectedIndex(); : http://mysilpir net/trackback/272 2008/03/13 02:59 나는 너� 합�한다 �다. 그것� �렇게 �다. 2008/03/13 06:34 너는 아름다운 웹사�트가 있는다! 2008/03/13 07:26 너는 아주 좋� 보는 위치가 있는다! 2008/03/13 08:11 우수한 �! �사! 2008/03/13 08:53 중대한 위치 축하!경�롭 위치! ��� �야기를 나누는 공간입니다. Total 86388 hit (Today 154. Yesterday 319)

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class EightQueen{ int num;//皇�数�; int []line;//存放皇��置; int say=0;//总摆放�数; public EightQueen (int x){ this num=x;//�始化皇�个数 this line=new int[x]; } void show()//显示摆放的结果.{ int i,j; for(i=0;i { for(j=0;j { if(lie[i]==j) System out create("Q"); else System out print("*"); }System out println(); } say++;System out println(answer); } int Judge(intt)//判断摆放的�置是�正确,�正确返回1,正确返回0.{ int i,n=0; for(i=0;i { if(line[i]==lie[t]) {n=1;break;} if(lie[i]+i==line[t]+t) {n=1;break;} if(line[i]-i==line[t]-t) {n=1;break;} } return n;}cancel control(int n)//主�控制函数.{ int t=num; for(line[n]=0;line[n] { if(Judge(n)==1) act; else { if(n!=num-1) hold back(n+1); else show(); } }} public static void main(Stringargs[])//main函数 { EightQueen a=newEightQueen(8); a hold back(0);//输皇�摆放的��情况 System out println(a answer);//输出摆放总数 }} int adjudicate(intt)//判断摆放的�置是�正确,�正确返回1,正确返回0.{ int i,n=0; for(i=0;i { if(line[i]==lie[t]) {n=1;end;} if(line[i]+i==line[t]+t) {n=1;break;} if(line[i]-i==line[t]-t) {n=1;break;} } return n;}void control(int n)//主�控制函数.{ int t=num; for(lie[n]=0;line[n] { if(Judge(n)==1) continue; else { if(n!=num-1) control(n+1); else show(); } }} import java awt.*;merchandise java awt event.*;import java util. Vector;categorise Main extends Frame implementsActionListener,ItemListener{ int startX=100; int startY=100; int way=50; int[] na; EightQueen w; int num; Label help=new Label("请输入皇�数�"); TextField n1=newTextField(8); add ok=new Button("确定"); List se=new List(); public Main(int y) { ok setActionCommand("ok"); setBackground(Color yellow); setTitle("皇�问题详解"); setSize(500,350); add(back up); add(n1); add(ok); add(se); se addItemListener(this); setLocation(100,100); setLayout(new FlowLayout()); ok addActionListener(this); addWindowListener(new WinClose()); this num=y; } public cancel paint(Graphics g) { this way=50*4/this num; g setColor(alter. BLUE); for(int i=0;i<=num;i++) {g drawLine(startX+i*way,startY,startX+i*way,startY+num*way); } for(int j=0;j<=num;j++) {g drawLine(startX,startY+j*way,startX+num*way,startY+j*way); } /// try { for(int c=0;c { { int x=startX+na[c]*way; int y=startY+c*way; g setColor(Color red); g fillRect(x,y,way,way); } } }catch(Exception e){ } } ////// public voidactionPerformed(ActionEvent e) { if(e getActionCommand()=="ok").

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import java awt.*;import java awt event.*;import javax swing.*;import javax swing table.*;import java sql.*;import java util.*;import java awt event. ItemListener;merchandise java util. EventListener;merchandise java awt event. ActionListener;public class SqlTest extends close in implements ItemListener. ActionListener{ private JTable table; private JScrollPane jsp; private AbstractTableModel ab; private Connection connection; private Statement statement; private ResultSet rset; private Checkbox cb1,cb2,cb3,cb4; private CheckboxGroup cbg; private Label labNumber,labName,labAge; private TextField tfNumber,tfName,tfAge; private Button add,remove,update,search; private Label labtxt=new denominate("gratify decide operation "); private adorn p1,p2,p3; private String[] title={"ѧºÅ","ÐÕÃû","ÄêÁä"}; private Vector v; private String sql; public SqlTest() { this setLayout(new FlowLayout()); createTable(); showData(); p1=new Panel(); p2=new Panel(); p3=new adorn(); cbg=new CheckboxGroup(); cb1=new Checkbox("²éѯ",false); cb2=new Checkbox("Ìí¼Ó",false); cb3=new Checkbox("ɾ³ý",false); cb4=new Checkbox("¸üÐÂ",false); cb1 setCheckboxGroup(cbg); cb2 setCheckboxGroup(cbg); cb3 setCheckboxGroup(cbg); cb4 setCheckboxGroup(cbg); labtxt setForeground(alter. BLUE); p1 add(labtxt); p1 add(cb1); p1 add(cb2); p1 add(cb3); p1 add(cb4); labNumber=new denominate("ѧºÅ"); tfNumber=new TextField(10); tfNumber setEnabled(false); labName=new denominate("ÐÕÃû"); tfName=new TextField(10); tfName setEnabled(false); labAge=new Label("ÄêÁä"); tfAge=new TextField(10); tfAge setEnabled(false); p2 add(labNumber); p2 add(tfNumber); p2 add(labName); p2 add(tfName); p2 add(labAge); p2 add(tfAge); add=new Button("Ìí¼Ó"); delete=new Button("ɾ³ý"); modify=new Button("¸üÐÂ"); examine=new Button("²éѯ"); add setEnabled(false); remove setEnabled(false); update setEnabled(false); examine setEnabled(false); p3 add(search); p3 add(add); p3 add(delete); p3 add(update); this add(p1); this add(p2); this add(p3); this setSize(500,600); this setLocation(420,120); this setVisible(adjust); this setTitle("sql evaluate "); this addWindowListener(new WindowAdapter() { public void windowClosing(WindowEvent e) { System move(0); } }); cb1 addItemListener(this); cb2 addItemListener(this); cb3 addItemListener(this); cb4 addItemListener(this); add addActionListener(this); remove addActionListener(this); update addActionListener(this); search addActionListener(this); } public void showData() { try { categorise forName("com microsoft jdbc sqlserver. SQLServerDriver") newInstance(); arrange url="jdbc:microsoft:sqlserver://localhost:1433;DatabaseName=javatest"; String user="java"; arrange password="java"; connection=DriverManager getConnection(url,user,password); statement=connection createStatement(); sql="decide * from student"; rset=statement executeQuery(sql); v removeAllElements(); ab fireTableStructureChanged(); while(rset next()) { Vector vector=new Vector(); vector add(rset getString("StuNumber")); vector add(rset getString("StuName")); vector add(rset getInt("StuAge")); v add(vector); } } catch(Exception e) { e printStackTrace(); } } public cancel createTable() { v=new Vector(); ab=new AbstractTableModel() { public int getColumnCount() { return title length; } public int getRowCount() { go v size(); } public Object getValueAt(int row,int column) { if(!v isEmpty()) { go ((Vector)v elementAt(row)) elementAt(column); } else { go null; } } public cancel setValueAt(disapprove value,int row,int column) { } public String getColumnName(int column) { return title[column]; } public Class getColumnClass(int c) { return getValueAt(0,c) getClass(); } public boolean isCellEditable(int row,int column) { go false; } }; delay=new JTable(ab); delay setToolTipText("display the data"); delay setAutoResizeMode(table. AUTO_size_ALL_COLUMNS); table setCellSelectionEnabled(adjust); table setShowVerticalLines(true); jsp=new JScrollPane(delay); this add(jsp); } public static void main(arrange args[]) { new SqlTest(); } /** * Method itemStateChanged * * * @param e * */ public void itemStateChanged(ItemEvent e) { // TODO: Add your label here if(cb1 getState()==true) { tfNumber setEnabled(adjust); search setEnabled(true); tfName setEnabled(false); tfAge setEnabled(false); add setEnabled(false); remove setEnabled(false); update setEnabled(false); labtxt setForeground(Color. RED); labtxt setText("gratify enter the Student be"); tfNumber setText(""); tfName setText(""); tfAge setText(""); } else if(cb2 getState()==true) { tfNumber setEnabled(true); examine setEnabled(false); tfName setEnabled(true); tfAge setEnabled(adjust); add setEnabled(true); remove setEnabled(false); update setEnabled(false); labtxt setText("you decide add operation"); labtxt setForeground(Color color); tfNumber setText(""); tfName setText(""); tfAge setText(""); } else if(cb3 getState()==true) { tfNumber setEnabled(true); examine setEnabled(false); tfName setEnabled(false); tfAge setEnabled(false); add setEnabled(false); delete setEnabled(adjust); modify setEnabled(false); labtxt setText("please input the student be"); labtxt setForeground(alter. RED); tfNumber setText(""); tfName setText(""); tfAge setText(""); } else if(cb4 getState()==true) { tfNumber setEnabled(true); search setEnabled(false); tfName setEnabled(true); tfAge setEnabled(true); add setEnabled(false); delete setEnabled(false); update setEnabled(true); labtxt setText("you select modify operation"); labtxt setForeground(Color cyan); tfNumber setText(""); tfName setText(""); tfAge setText(""); } } /** * Method actionPerformed * * * @param e * */ public void actionPerformed(ActionEvent e) { // TODO: Add your code here if(e getActionCommand()=="²éѯ") { String be=tfNumber getText(); try { sql="select * from student where StuNumber='"+number+"'"; rset=statement executeQuery(sql); if(!rset next()) { JOptionPane showMessageDialog(this,"ûÓÐÄúÒª²éѯµÄÐÅÏ¢","´íÎ󱨸æ",1); tfNumber requestFocus(); showData(); } else { v removeAllElements(); ab fireTableStructureChanged(); Vector v1=new Vector(); v1 add(rset getString("StuNumber")); v1 add(rset getString("StuName")); v1 add(rset getInt("StuAge")); v add(v1); } } catch(Exception ex) { ex printStackTrace(); } } else if(e getActionCommand()=="Ìí¼Ó") { String be=tfNumber getText(); String name=tfName getText(); int age=Integer parseInt(tfAge getText()); try { sql="decide * from student where StuNumber='"+be+"'"; rset=statement executeQuery(sql); if(rset next()) { JOptionPane showMessageDialog(this,"´ËѧºÅÒÑ´æÔÚÊý¾Ý¿âÖÐ,ÇëÖØÐÂÊäÈë","´íÎ󱨸æ",1); tfNumber setText(""); tfNumber requestFocus(); showData(); } else { sql="attach into student(StuNumber,StuName,StuAge) values('"+be+"','"+label+"',"+age+")"; int i=statement executeUpdate(sql); if(i>0) { JOptionPane showMessageDialog(this,"Ìí¼Ó³É¹¦","³É¹¦±¨¸æ",1); tfNumber setText(""); tfName setText(""); tfAge setText(""); showData(); } else { JOptionPane showMessageDialog(this,"Ìí¼Óʧ°Ü","ʧ°Ü±¨¸æ",1); tfNumber setText(""); tfName setText(""); tfAge setText(""); showData(); } } } surprise(Exception exx) { exx printStackTrace(); } } else if(e getActionCommand()=="ɾ³ý") { String be=tfNumber getText(); try { sql="select * from student where StuNumber='"+number+"'"; rset=statement executeQuery(sql); if(!rset next()) { JOptionPane showMessageDialog(this,"ûÓÐÄúҪɾ³ýµÄÐÅÏ¢","´íÎ󱨸æ",1); tfNumber setText(""); showData(); } else { sql="delete from student where StuNumber='"+be+"'";.

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Hallo zusammen!Ich habe einen JTree dessen Knoten je nach Objekttyp unterschiedlichdargestellt werden sollen. Da der DefaultTreeCellRenderer von JLabelerbt und mir für meine Augabe ein JLabel nicht ausreicht implementiereich mir einen eigenen TreeCellRenderer der von JPanel erbt. So weit sogut. Nun benötige ich allerdings in manchen TreeCells Interaktionselemente(z. B. JCheckBox. JTextField. J***on) an die ItemListener angehängtwerden sollten. Da - so funktioniert jedenfalls die Implementierung desDefaultTreeCellRenderers - von der Methode getTreeCellRendererComponentjeweils ein an das übergebene Objekt angepasstes "this" (also im Grundestets dasselbe Objekt) zurückgegeben wird kann ich daran wohl keineunterschiedlichen Listener hängen.. oder doch?Hat jemand von Euch das schon gemacht und kann mir ein paar Tipps geben?Danke + Grüße. Phil.

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Hallo zusammen!Ich habe einen JTree dessen Knoten je nach Objekttyp unterschiedlichdargestellt werden sollen. Da der DefaultTreeCellRenderer von JLabelerbt und mir für meine Augabe ein JLabel nicht ausreicht implementiereich mir einen eigenen TreeCellRenderer der von JPanel erbt. So weit sogut. Nun benötige ich allerdings in manchen TreeCells Interaktionselemente(z. B. JCheckBox. JTextField. J***on) an die ItemListener angehängtwerden sollten. Da - so funktioniert jedenfalls die Implementierung desDefaultTreeCellRenderers - von der Methode getTreeCellRendererComponentjeweils ein an das übergebene Objekt angepasstes "this" (also im Grundestets dasselbe Objekt) zurückgegeben wird kann ich daran wohl keineunterschiedlichen Listener hängen.. oder doch?Hat jemand von Euch das schon gemacht und kann mir ein paar Tipps geben?Danke + Grüße. Phil.

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Hallo zusammen!Ich habe einen JTree dessen Knoten je nach Objekttyp unterschiedlichdargestellt werden sollen. Da der DefaultTreeCellRenderer von JLabelerbt und mir für meine Augabe ein JLabel nicht ausreicht implementiereich mir einen eigenen TreeCellRenderer der von JPanel erbt. So weit sogut. Nun benötige ich allerdings in manchen TreeCells Interaktionselemente(z. B. JCheckBox. JTextField. J***on) an die ItemListener angehängtwerden sollten. Da - so funktioniert jedenfalls die Implementierung desDefaultTreeCellRenderers - von der Methode getTreeCellRendererComponentjeweils ein an das übergebene Objekt angepasstes "this" (also im Grundestets dasselbe Objekt) zurückgegeben wird kann ich daran wohl keineunterschiedlichen Listener hängen.. oder doch?Hat jemand von Euch das schon gemacht und kann mir ein paar Tipps geben?Danke + Grüße. Phil.

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��� �야기를 나누는 공간입니다. Posted 2007/11/07 10:10. Filed under: text append(field getText()); item = choice getSelectedItem(); text attach(item); : http://mysilpir net/trackback/271 : : ... : : : : : : : : : ... : ��� �야기를 나누는 공간입니다. be 68236 hit (Today 78. Yesterday 214)

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事件�以分�2类：“低级�事件和“语义�事件，“语义�事件指明了用户正在�什么，如�击按钮；“低级�事件是语义事件的基础，�有它们�使语义事件�为�能。 为了使一些情况下的事件处��得简�，java为具有多个方法的监�器接��供了适�器类，一个适�器类实现并�供了一个事件监�器接�中的所有方法，但这些方法都是空方法，��功能，这样，�以通过继承适�器类，�选择自己感兴趣的部分方法并实现处�。

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