My java program show 0.0 in 15/100

Question

Why does this program show 0.0?.

Below is my code:

   class new1{
    public static void main (String[]args){
        int discount = 15;
        float discount1 = 15/100;
        System.out.println(discount1);
    }
}

Answer 1

In line float discount1 = 15/100; is evaluated using the integer division.

If you want to get expected result, you should write like this

 float discount1 = 15.0/100;