Simple division operation returning zero?

Question

What am I missing?

float stepSize = 0.0f;
int activeCircleRadius = 10;
int numSteps = 24;

AiLog.v(\"init activeCircleRadius \" + activeCircleRadius + \" numStep         


        

Answer 1

Here both variables are integers so you are performing integer division:

activeCircleRadius / numSteps

The result of integer division is an integer. The result is truncated.

To fix the problem, change the type of one (or both) variables to a float:

float stepSize = 0.0f;
float activeCircleRadius = 10;

Or add a cast to float in the division expression:

stepSize = (float)activeCircleRadius / numSteps;

Answer 2

Don't do integer division

stepSize = activeCircleRadius / (float)numSteps;

In summary: Yes its because you divide activeCircleRadius by an integer.

Answer 3

an integer division will give the result as 0. its 10/24 and not 10.0/24.0. you need to make one variable as double or float to get non zero answer.

Answer 4

You are doing an integer division, and hence will not get any decimal places in your answer. Try changing:

stepSize = activeCircleRadius / numSteps;

to

stepSize = activeCircleRadius / (float)numSteps;

Answer 5

 With all arithmetic operators in Java, the result has the type of the largest operator. For instance: 
- float operator long => float 
- int operator int => int 
- int operator long => long 


float stepSize = 0f;
        float activeCircleRadius = (float) 10.0;
        int numSteps = 24;
        stepSize = activeCircleRadius / numSteps;