null pointer exception in button declaration

Question

in this line am getting NullPointerException can any one help me to fix this

Button up[]; 
up[0] = (Button) findViewById(R.id.adultup1);
up[0].setOnClickListener(new View.OnClickListener() {
    public void onClick(View view) {}

but a breakpoint in the second line and launch the application in debug mode. See what it's null, (up or R.id.adultup1) and solve it using one of the answers below. I think you're getting the nullpointer in the up variable. — Finuka
– Finuka, Commented Oct 12, 2011 at 11:32

Blackbelt · Accepted Answer · 2013-11-01 21:17:49Z

3

You need to allocate the Button array, e.g.

up = new Button[10];

edited Nov 1, 2013 at 21:17

Blackbelt

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answered Oct 12, 2011 at 10:28

PJL

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