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Asked: 2026-05-11T14:54:18+00:00

In another Bruce Eckels exercise in calculating velocity, v = s / t where

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In another Bruce Eckels exercise in calculating velocity, v = s / t where s and t are integers. How do I make it so the division cranks out a float?

class CalcV {   float v;   float calcV(int s, int t) {     v = s / t;     return v;   } //end calcV }  public class PassObject {    public static void main (String[] args ) {     int distance;     distance = 4;      int t;     t = 3;      float outV;      CalcV v = new CalcV();     outV = v.calcV(distance, t);      System.out.println('velocity : ' + outV);   } //end main }//end class
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  1. Just cast one of the two operands to a float first.

    v = (float)s / t;

    The cast has higher precedence than the division, so happens before the division.

    The other operand will be effectively automatically cast to a float by the compiler because the rules say that if either operand is of floating point type then the operation will be a floating point operation, even if the other operand is integral. Java Language Specification, §4.2.4 and §15.17

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