Error "cannot find symbol: variable area"

Question

Have anybody help me 😭how can i solve this problem

public static double circleArea (double r){
if (r>=0){
double area = Math.PI *Math.pow(r , 2.0);
}
return area;
}

cannot find symbol: variable area
return area;
^

Answer 1

Try this:

public static double circleArea (double r){
double area = 0;
if (r>=0){
area = Math.PI *Math.pow(r , 2.0);
}
return area;
}

or this:
public static double circleArea (double r){
if (r>=0){
return Math.PI *Math.pow(r , 2.0);
}
return 0;
}

Your area variable has scope within the {} brackets which is why you have a problem compiling the return area; which is after the closing }.

Answer 2

Oh~ I got it, thank you so much 😆

Answer 3

What was the parameter you gave?