Get Selected Item on JComboBox | JAVA
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I've problem with a JComboBox SelectedItem can someone help me ?
I've implemented a GUI window where are a various textfield and one JComboBox. When I click button, code must create an Object with the strings of the textfield and string of ComboBox, but I've a NullPointerException
in SelectedItem
... The code to get is :
(String)combo.getSelectedItem()
I tried too:
combo.getSelectedItem().toString()
but don't work !
I don't know if I need a ActionListener but think it's not required.
java nullpointerexception jcombobox
add a comment |
I've problem with a JComboBox SelectedItem can someone help me ?
I've implemented a GUI window where are a various textfield and one JComboBox. When I click button, code must create an Object with the strings of the textfield and string of ComboBox, but I've a NullPointerException
in SelectedItem
... The code to get is :
(String)combo.getSelectedItem()
I tried too:
combo.getSelectedItem().toString()
but don't work !
I don't know if I need a ActionListener but think it's not required.
java nullpointerexception jcombobox
See stackoverflow.com/questions/39789141/…
– user7294900
Dec 30 '18 at 12:22
There isn't way to get an item without modify selection ?
– BitProgram
Dec 30 '18 at 12:27
you can't select selected without selecting first
– user7294900
Dec 30 '18 at 12:30
@user7294900 I tried with try catch , but if I select another item catch again NullPointer Exception
– BitProgram
Dec 31 '18 at 0:59
add a comment |
I've problem with a JComboBox SelectedItem can someone help me ?
I've implemented a GUI window where are a various textfield and one JComboBox. When I click button, code must create an Object with the strings of the textfield and string of ComboBox, but I've a NullPointerException
in SelectedItem
... The code to get is :
(String)combo.getSelectedItem()
I tried too:
combo.getSelectedItem().toString()
but don't work !
I don't know if I need a ActionListener but think it's not required.
java nullpointerexception jcombobox
I've problem with a JComboBox SelectedItem can someone help me ?
I've implemented a GUI window where are a various textfield and one JComboBox. When I click button, code must create an Object with the strings of the textfield and string of ComboBox, but I've a NullPointerException
in SelectedItem
... The code to get is :
(String)combo.getSelectedItem()
I tried too:
combo.getSelectedItem().toString()
but don't work !
I don't know if I need a ActionListener but think it's not required.
java nullpointerexception jcombobox
java nullpointerexception jcombobox
asked Dec 30 '18 at 12:20
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BitProgramBitProgram
147
147
See stackoverflow.com/questions/39789141/…
– user7294900
Dec 30 '18 at 12:22
There isn't way to get an item without modify selection ?
– BitProgram
Dec 30 '18 at 12:27
you can't select selected without selecting first
– user7294900
Dec 30 '18 at 12:30
@user7294900 I tried with try catch , but if I select another item catch again NullPointer Exception
– BitProgram
Dec 31 '18 at 0:59
add a comment |
See stackoverflow.com/questions/39789141/…
– user7294900
Dec 30 '18 at 12:22
There isn't way to get an item without modify selection ?
– BitProgram
Dec 30 '18 at 12:27
you can't select selected without selecting first
– user7294900
Dec 30 '18 at 12:30
@user7294900 I tried with try catch , but if I select another item catch again NullPointer Exception
– BitProgram
Dec 31 '18 at 0:59
See stackoverflow.com/questions/39789141/…
– user7294900
Dec 30 '18 at 12:22
See stackoverflow.com/questions/39789141/…
– user7294900
Dec 30 '18 at 12:22
There isn't way to get an item without modify selection ?
– BitProgram
Dec 30 '18 at 12:27
There isn't way to get an item without modify selection ?
– BitProgram
Dec 30 '18 at 12:27
you can't select selected without selecting first
– user7294900
Dec 30 '18 at 12:30
you can't select selected without selecting first
– user7294900
Dec 30 '18 at 12:30
@user7294900 I tried with try catch , but if I select another item catch again NullPointer Exception
– BitProgram
Dec 31 '18 at 0:59
@user7294900 I tried with try catch , but if I select another item catch again NullPointer Exception
– BitProgram
Dec 31 '18 at 0:59
add a comment |
1 Answer
1
active
oldest
votes
you can get the jcombox selected items like this.
String item = jcombox.getSelectedItem().toString ();
I Placed this code on onclick event of a button and it worked.
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
you can get the jcombox selected items like this.
String item = jcombox.getSelectedItem().toString ();
I Placed this code on onclick event of a button and it worked.
add a comment |
you can get the jcombox selected items like this.
String item = jcombox.getSelectedItem().toString ();
I Placed this code on onclick event of a button and it worked.
add a comment |
you can get the jcombox selected items like this.
String item = jcombox.getSelectedItem().toString ();
I Placed this code on onclick event of a button and it worked.
you can get the jcombox selected items like this.
String item = jcombox.getSelectedItem().toString ();
I Placed this code on onclick event of a button and it worked.
answered Dec 30 '18 at 15:53
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Habib MhamadiHabib Mhamadi
357
357
add a comment |
add a comment |
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See stackoverflow.com/questions/39789141/…
– user7294900
Dec 30 '18 at 12:22
There isn't way to get an item without modify selection ?
– BitProgram
Dec 30 '18 at 12:27
you can't select selected without selecting first
– user7294900
Dec 30 '18 at 12:30
@user7294900 I tried with try catch , but if I select another item catch again NullPointer Exception
– BitProgram
Dec 31 '18 at 0:59