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NullPtrException when reading JTextField

Antony Amicone
Ranch Hand

Joined: Mar 11, 2006
Posts: 125
i have a jtextfield, and when i press a button, i should have a print that show me the value inserted in the textfield, but it doesnt run.

David O'Meara
Rancher

Joined: Mar 06, 2001
Posts: 13459

recipeNameField is never created
Antony Amicone
Ranch Hand

Joined: Mar 11, 2006
Posts: 125
i create it there

Antony Amicone
Ranch Hand

Joined: Mar 11, 2006
Posts: 125
and i added another modifier

fred rosenberger
lowercase baba
Bartender

Joined: Oct 02, 2003
Posts: 10911
    
  12

do you really expect someone to go through your almost 600 lines of code? And as Dave said, you never create recipeNameField. The ONLY place I see it is on line 112 of your TbEvent class in the "public TbEvent(JButton t1, JTextField tf1, JComboBox tf2, JSlider tf3, JSpinner tf4, JSpinner tf5)" constructor...but it's never declared anywhere.


There are only two hard things in computer science: cache invalidation, naming things, and off-by-one errors
Antony Amicone
Ranch Hand

Joined: Mar 11, 2006
Posts: 125
looool i was tired, stupid error ty a lot
i solved
Rob Spoor
Sheriff

Joined: Oct 27, 2005
Posts: 19541
    
  16

Next time please limit your code to an SSCCE. With this amount of code I didn't even bother looking at it.


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