P131 T1IMPORT JAVAX.SWING. *; Import Java.awt. *; / * * Create Date 2004-11-11 * /
/ ** * @Author Lileltp * / public class framedemo extends jframe {
private Panel panel = null; private Label label = null; private Checkbox checkbox = null; private Checkbox checkbox1 = null; / ** * This method initializes panel * * @return java.awt.Panel * / private Panel getPanel () {if (panel == null) {GridLayout GridLayout1 = New GridLayout (5, 1); label = new label (); panel = new panel (); panel.setLayout (GridLayout1); label.settext ("What is hobby?" ); GridLayout1.setrows (6); gridLayout1.sethgap (0); panel.add (label, null); panel.add (getCheckbox (), null); panel.add (getCheckbox1 (), null); panel.add (getCheckbox2 (), null); panel.add (getCheckbox3 (), null);} return panel;} / ** * This method initializes checkbox * * @return java.awt.Checkbox * / CheckboxGroup cg = new CheckboxGroup () ; private Checkbox checkbox2 = null; private Checkbox checkbox3 = null; private Checkbox getCheckbox () {if (checkbox == null) {checkbox = new Checkbox (); checkbox.setLabel ( "read"); checkbox.setCheckboxGroup (cg); } Returnckbox ;} / ** * This method initializes checkbox1 * * @return java.awt.Checkbox * / private Checkbox getCheckbox1 () {if (checkbox1 == null) {checkbox1 = new Checkbox (); checkbox1.setLabel ( "sports") ; checkbox1.setCheckboxGroup (cg);} return checkbox1;} / ** * This method initializes checkbox2 * * @return java.awt.Checkbox * / private Checkbox getCheckbox2 () {if (checkbox2 == null) {checkbox2 = new Checkbox (); CheckBox2.setLabel ("Painting"); CheckBox2.SetCheckboxGroup (CG);} returnckbox2;} / ** * this method initializes checkbox3 * * @
