wrong division in java [duplicate]

Answer 1

Need to cast to double...

public double CalcRatio() {
            return ( (double) this.sentPackets/ (double) this.receivedPackets);
       }

Answer 2

(double)this.sentPackets/this.receivedPackets

... should fix it.

Answer 3

The result of the division is cast to a double AFTER integer division (with rounding down) is performed. Cast one of the integers to a double BEFORE dividing so that double division occurs.

Answer 4

When dividing an int by an int the answer will be an int. Therefor it will cut off any remainder there may be in the answer. In order to get a double answer you must cast one of the ints to a double.

Answer 5

Cast at least one of the ints to (double) before dividing.

Answer 6

It is not only Java-specific behaviour. It works the same way in .NET, too.