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Apr 9th, 2007
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Help pls

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Help me pls. I have some problems with method getClient(), bring only two classes.
Java Syntax (Toggle Plain Text)
  1. package drugstore;
  2.  
  3. public class DrugstoreFrame extends JFrame {
  4.     Client person;
  5.     ...
  6.  
  7.     public Client getClient(){
  8.          person.setAccount(getField(jTextField4));
  9.          person.setPassword(getField(jPasswordField2));
  10.          person.setFio(getField(jTextField5));
  11.          person.setAddress(getField(jTextField6));
  12.          person.setTelephone(getField(jTextField3));
  13.          person.setAdditionalInformation(getField(jTextField7));
  14.          return person;
  15.     }
  16.     private String getField(JTextField field){
  17.         return field.getText();
  18.     }
  19.     public void jButton10_mouseClicked(MouseEvent e) {
  20.        person = getClient();
  21.        try{
  22.            database.newPerson(person);
  23.       }catch(DataAccessException exception){
  24.         }
  25.  }
  26. }


Java Syntax (Toggle Plain Text)
  1. package drugstore;
  2.  
  3. public class Client {
  4.     private String fio = ""; 
  5.     private String address = ""; 
  6.     private String telephone = ""; 
  7.     private String additional_information = ""; 
  8.     private String account = ""; 
  9.     private String password = ""; 
  10.     private int client_id; 
  11.  
  12.  Client(int client_id){
  13.      this.client_id = client_id;
  14.  
  15.  }
  16.  
  17.     public void setClientId(int client_id){
  18.         this.client_id = client_id;
  19.     }
  20.     public void setFio(String fio){
  21.         this.fio = fio;
  22.     }
  23.     public void setAddress(String address){
  24.         this.address = address;
  25.     }
  26.     public void setTelephone(String telephone){
  27.         this.telephone = telephone;
  28.     }
  29.     public void setAdditionalInformation(String additional_information){
  30.         this.additional_information = additional_information;
  31.     }
  32.     public void setAccount(String account){
  33.         this.account = account;
  34.     }
  35.     public void setPassword(String password){
  36.         this.password = password;
  37.     }
  38. }

When performing the program we receive necessary error.


Java Syntax (Toggle Plain Text)
  1. Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException
  2. 	at drugstore.DrugstoreFrame.getClient(DrugstoreFrame.java:293)
  3. 	at drugstore.DrugstoreFrame.jButton10_mouseClicked(DrugstoreFrame.java:389)
  4. 	at drugstore.DrugstoreFrame_jButton10_mouseAdapter.mouseClicked(DrugstoreFrame.java:409)
  5. 	at java.awt.AWTEventMulticaster.mouseClicked(AWTEventMulticaster.java:212)
  6. 	at java.awt.Component.processMouseEvent(Component.java:5491)
  7. 	at javax.swing.JComponent.processMouseEvent(JComponent.java:3093)
  8. 	at java.awt.Component.processEvent(Component.java:5253)
  9. 	at java.awt.Container.processEvent(Container.java:1966)
  10. 	at java.awt.Component.dispatchEventImpl(Component.java:3955)
  11. 	at java.awt.Container.dispatchEventImpl(Container.java:2024)
  12. 	at java.awt.Component.dispatchEvent(Component.java:3803)
  13. 	at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4212)
  14. 	at java.awt.LightweightDispatcher.processMouseEvent(Container.java:3901)
  15. 	at java.awt.LightweightDispatcher.dispatchEvent(Container.java:3822)
  16. 	at java.awt.Container.dispatchEventImpl(Container.java:2010)
  17. 	at java.awt.Window.dispatchEventImpl(Window.java:1774)
  18. 	at java.awt.Component.dispatchEvent(Component.java:3803)
  19. 	at java.awt.EventQueue.dispatchEvent(EventQueue.java:463)
  20. 	at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:242)
  21. 	at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:163)
  22. 	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:157)
  23. 	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:149)
  24. 	at java.awt.EventDispatchThread.run(EventDispatchThread.java:110)
Last edited by kapkan; Apr 9th, 2007 at 2:09 pm. Reason: bad title, sorry =)
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kapkan is offline Offline
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Apr 10th, 2007
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Re: Help pls

I have found the problem.
public Client getClient(){
person = new Client();
...
}
Last edited by kapkan; Apr 10th, 2007 at 5:41 am.
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kapkan is offline Offline
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Apr 10th, 2007
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Re: Help pls

Nicely done, we would be able to help you as that wasn't part of the code and rest which you provided does look fine
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peter_budo is offline Offline
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This thread is more than three months old

No one has posted to this discussion for at least three months. Please let old threads die and do not reply to them unless you feel you have something new and valuable to contribute that absolutely must be added to make the discussion complete. Otherwise, please start a new thread in this forum instead.
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