compute area of the circle.

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compute area of the circle.

Thu Jul 14, 2011 1:00 pm

Code:
//compute area of the circle.
class area{
public static void main(String[] args)
{
double pi,a;
pi=3.1415;
for(int r=1;r<5;r++)
{
a=pi*r*r;
}
System.out.println("Area of the circle is"+a);
}
}




cmd shows an error saying "a" needs to be initialized.. how can i do that when "a" is the result??



DrRakha
  • DrRakha
  • Posts: 2715
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Re: compute area of the circle.

Thu Jul 14, 2011 5:32 pm

Code:
double pi,a;


to
Code:
double pi=0.0d,a=0.0d;


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