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javafloating-point-conversion

Multiplying float values "possible lossy conversion from double to float"

I have this problem wherein I have to convert kilometers into miles. I'm a novice programmer so bear with me.

Here's my code so far:

import java.util.Scanner;

public class problem1 {
    public static void main (String args[]) {
        float m;
        float km;

        Scanner input=new Scanner(System.in);

        System.out.print("Please enter a distance in kilometers:");
        km=input.nextFloat();
        m=km*0.621371;
        System.out.println("This is equal to: "+m);
    }
}

It gives me an error saying:

Incompatible types:possible lossy conversion from double to float.
Solution

  • You are trying to set a double to a float variable

    To fix, change this line

    m=km*0.621371;

    to

    m=km*0.621371f;