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Home/ Questions/Q 5941927
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Editorial Team
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Editorial Team
Asked: May 22, 20262026-05-22T16:10:45+00:00 2026-05-22T16:10:45+00:00

I added a button in layout and obtained its reference in the activity: Button

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I added a button in layout and obtained its reference in the activity:

Button button1=(Button)findViewById(R.id.button1);
button1.setVisiblity(View.Visible);

Program crashes with this code. How do I set its visibility correctly?

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  1. Editorial Team
    Editorial Team
    2026-05-22T16:10:45+00:00Added an answer on May 22, 2026 at 4:10 pm

    Whats the error? it should be View.VISIBLE (uppercase).

    If you have a null pointer exception at that point, its probably because its not finding the view in your layout.

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