SUPER SIMPLE QUESTION!!!

I just started me java class and im confused about how powers work, such as

Volume of Cylinder = PIE (radius)2(SUPPOSED TO BE SQUARE, NOT 2) *height


how does the above translate to java code? specificly the power of 2, sry im stupid, thx:D

For exponents you use:

Code java:

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Math.pow(A, B); //A is the original number. B is to what power

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Take a look at the Java Platform SE 6 class. Most notably the pow method.

I always write squares out (in my mind this is faster and more accurate, but not by much) :P

Mmm, PIE. It's actually PI, and you can use Math.PI for the floating point representation of this number. Also, in Java you must explicitly spell out everywhere you're performing a multiplication/add/etc.

Code Java:

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double a = 3;
double b = 3a; // error
double b = 3 a; // error
double b = 3 * a; // correct

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Volume of Cylinder = PI(radius)2(power 2) * height
Surface Area of Cylinder = 2 PI radius * height

ok so im confused on why my teacher would give me the above as a formulas. at my level of math and java programming the above makes no sense.. i can decipher the top one. but 2 pi radius * height.. umm wtf

so its 2 * pi * radius * height? Why have one multiplication symbol and not the rest?

Your anwser should look like this

Code java:

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int height = 2;
int radius = 3;
double volume = Math.PI * (Math.pow(radius, 2) )* height;

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It isn't in parenthesis.. look at volume. o well, i got it fiqured out, i think my teachers kind of mean tho. THanks for the help everyone.

Did you see my above post?