importjava.awt.FlowLayout;importjava.awt.event.MouseEvent;importjava.awt.event.MouseListener;importjava.awt.event.MouseMotionListener;importjavax.swing.JDialog;importjavax.swing.JFrame;importjavax.swing.JLabel;importjavax.swing.JPanel;publicclassMouseListenerTestimplementsMouseListener{//测试鼠标监听MouseListener包括鼠标的进入、退出、单击、按压某个区域。JFramejf=newJFrame("鼠标事件练习");JPaneljp1=newJPanel();JLabeljlb1=newJLabel("测试内容1");JLabeljlb2=newJLabel("测试内容2");JLabeljlb3=newJLabel("测试内容3");JLabeljlb4=newJLabel("测试内容4");publicMouseListenerTest(){//TODOAuto-generatedconstructorstubjp1.setLayout(newFlowLayout());jp1.add(jlb1);jp1.add(jlb2);jp1.add(jlb3);jp1.add(jlb4);jf.add(jp1);jp1.addMouseListener(this);jf.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);jf.setVisible(true);jf.setSize(450,200);}@OverridepublicvoidmouseClicked(MouseEventarg0){//TODOAuto-generatedmethodstubjlb1.setText("鼠标点击面板了");JDialogdialog=newJDialog(jf,"对话框测试");dialog.setVisible(true);}@OverridepublicvoidmouseEntered(MouseEventarg0){//TODOAuto-generatedmethodstubjlb2.setText("鼠标进入面板了");}@OverridepublicvoidmouseExited(MouseEventarg0){//TODOAuto-generatedmethodstubjlb3.setText("鼠标退出面板了");}@OverridepublicvoidmousePressed(MouseEventarg0){//TODOAuto-generatedmethodstubintx=arg0.getX();inty=arg0.getY();jlb4.setText("鼠标单击的坐标是:x="+x+",y="+y);}@OverridepublicvoidmouseReleased(MouseEventarg0){//TODOAuto-generatedmethodstub}publicstaticvoidmain(String[]args){//TODOAuto-generatedmethodstubMouseListenerTesttest=newMouseListenerTest();}}