乘法时得到错误的值

Question

I am writing an Android app and I have an algorithm to calculate some score out of several variables but when computing, I get wrong answer:

I get 10300 when I set mv, ptv, txtv to 10 whereas I should get 100. When I set it to 1, I get 300 as answer.

int f;
f = (((mv*ptv*txtv)/10^3)*100);
int finalScr = f;
TextView scoreView = (TextView)findViewById(R.id.textView3);
scoreView.setText(Integer.toString(finalScr));

All the variables are integers and the maximum value of all the variables is 10 and minimum is 1.

Please help.. I don't think I am mathematically wrong :P

Answer 1

^ is not the power operator in Java . It's an XOR operator.

You should use Math.pow(10, 3) for that:

f = (int)(((mv*ptv*txtv)/Math.pow(10, 3))*100);

Typecast to int is needed, as the result of Math.pow is double type.

Answer 2

^ is not the exponential operator. Its an xor operator. You need to make it

f = (((mv*ptv*txtv)/(10*10*10))*100);