Help pls

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Join Date: Apr 2007
Posts: 5
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kapkan kapkan is offline Offline
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Help pls

 
0
  #1
Apr 9th, 2007
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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Re: Help pls

 
0
  #2
Apr 10th, 2007
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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Re: Help pls

 
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  #3
Apr 10th, 2007
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
Learn to see in another's calamity the ills which you should avoid.
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(~100 BC)
LJC - London Java Community, Graduate & Undergraduate Software Development Community, JAVAWUG (Java Web User Group), The London Android Group
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