java.lang.NullPointerException CheckBox.isChecked();

Asked Mar 06 '16 at 12:44

Active Mar 06 '16 at 13:00

Viewed 21 times

I got a NullPointerException error with this.

if(Cb_Ar.isChecked())
        toPass = Cb_Ar.toString();
    else if (Cb_Db.isChecked())
        toPass = Cb_Db.toString();
    else if (Cb_Hb.isChecked())
        toPass = Cb_Hb.toString();

Here is my LogCat;

03-06 20:38:54.907 3274-3274/? E/AndroidRuntime:  Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'boolean android.widget.CheckBox.isChecked()' on a null object reference

03-06 20:38:54.907 3274-3274/? E/AndroidRuntime:     at com.example.jello.letscook.showmenu.showList(showmenu.java:73)

03-06 20:38:54.907 3274-3274/? E/AndroidRuntime:     at com.example.jello.letscook.showmenu.onCreate(showmenu.java:46)

03-06 20:38:54.907 3274-3274/? E/AndroidRuntime:     at android.app.Activity.performCreate(Activity.java:6237)

edited Mar 06 '16 at 13:00

GoRoS

5,183
2
43
66

asked Mar 06 '16 at 12:44

Jellolicious

Your `Cb_Ar` is null - check the "duplicate" link. – Chaoz Mar 06 '16 at 12:51
Your are converting a null into string which causes error – Farrukh Faizy Mar 06 '16 at 12:57
How to get the value text of Checkbox ? – Jellolicious Mar 06 '16 at 13:06
use getText() method -> Cb_Ar.getText() – jihoon kim Mar 06 '16 at 14:07

java.lang.NullPointerException CheckBox.isChecked();

0 Answers0