Using Collections and Strings in a Reusable Class - Java Programming: Comprehensive Concepts and Techniques - page 587

124 if ( password.isExpiring ())

125 {

126 msg = "Password use successful; " + password.getRemainingUses () +

" use(s) remaining." ;

127 title = "Success" ;

128 optionType = JOptionPane.WARNING_MESSAGE;

129 }

130 else

131 {

132 msg = "Password use successful" ;

133 title = "Success" ;

134 optionType = JOptionPane.INFORMATION_MESSAGE;

135 }

136 }

137 else if ( e.getSource () == jbtChangePswd ) // user clicked Change password

138 {

139 newPswd = new String ( newPswdField.getPassword ()) ;

140 password.set ( newPswd ) ;

141
142 msg = "Password changed." ;

143 title = "Success" ;

144 optionType = JOptionPane.INFORMATION_MESSAGE;

145 }

146 else if ( e.getSource () == jbtAddPswd ) // user clicked Add password

147 {

148 newPswd = new String ( newPswdField.getPassword ()) ;

149 password = new Password ( newPswd,5 ) ; // auto expires after 5 additional uses

150
151 if ( password.getAutoExpires ())

152 msg = "Success! Password added with " +password.getRemainingUses () +

" remaining uses." ;

153 else

154 msg = "Success! Password added - not set to expire." ;

155
156 title = "Success" ;

157 optionType = JOptionPane.INFORMATION_MESSAGE;

158 }

159 else // can never happen

160 {

161 msg = "Please choose a valid action." ;

162 title = "Invalid Action" ;

163 optionType = JOptionPane.WARNING_MESSAGE;

164 }

165
166 JOptionPane.showMessageDialog ( this , msg, title, optionType ) ;

167 pswdField.setText ( "" ) ;

168 newPswdField.setText ( "" ) ;

169 pswdField.requestFocus () ;

170
171 } // end of try

172 catch ( NullPointerException ex )

173 {

174 JOptionPane.showMessageDialog ( this , "No Password yet created" ,

175 "Invalid password. Try again." ,

176 JOptionPane.ERROR_MESSAGE ) ;

177 }

178 catch ( Exception ex )

179 {

180 JOptionPane.showMessageDialog ( this , ex.getMessage () ,

181 "Invalid password. Try again." ,

182 JOptionPane.ERROR_MESSAGE ) ;

183 }

184 }

185 }

FIGURE 9-43