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Thread: Physics Program

  1. #26
    Member Fendaril's Avatar
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    Default Re: Physics Program

    What is the error.

  2. #27
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    Default Re: Physics Program

    ';' expected. thats all it says

  3. #28
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    Default Re: Physics Program

    Class Force
    {
    Public int CalculateForce(double first, double second)
    {
    return first * second;
    }
    Public Static void main(String args[])
    {
    Force formula=new Force();
    Scanner read=new Scanner(System.in);
    double a=0;
    double b=0;
    a=read.nextDouble();
    b=read.nextDouble();
    system.out.println("The Force is " + formula.CaclulateForce(a,b));
    }
    }

    I missed a colon at "Scanner read=new Scanner(System.in)"

  4. #29
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    Default Re: Physics Program

    now there is an error with the return first * second. it says "possible loss of precision"

  5. #30
    Member Fendaril's Avatar
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    Default Re: Physics Program

    Class Force
    {
    Public double CalculateForce(double first, double second)
    {
    return first * second;
    }
    Public Static void main(String args[])
    {
    Force formula=new Force();
    Scanner read=new Scanner(System.in);
    double a=0;
    double b=0;
    a=read.nextDouble();
    b=read.nextDouble();
    system.out.println("The Force is " + formula.CaclulateForce(a,b));
    }
    }

    Sorry for all those bugs. Im not in front of my ide . Ok try this.

  6. #31
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    Default Re: Physics Program

    now for Scanner read=new Scanner(System.in); it says cannot find symbol - class Scanner. I'm really sorry for bothering you with all this. You are a really great guy for helping me this much. I hope you know that and I really appreciate it.

  7. #32
    Member Fendaril's Avatar
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    Default Re: Physics Program

    Did you import?

    import java.util.*;

  8. #33
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    Default Re: Physics Program

    no. do i put that right before the code?

  9. #34
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    Default Re: Physics Program

    yes. Hope it works.

  10. #35
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    Default Re: Physics Program

    that work but now it says cannot find symbol - method CalculateForce(double,double) for system.out.println("The Force is " + formula.CaclulateForce(a,b));

  11. #36
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    Default Re: Physics Program

    formula.CaclulateForce(a,b));

    Typo should be

    formula.CalculateForce(a,b));
    chris[at]javaprogrammingforums[dot]com

    Prifysgol Bangor University, North Wales

  12. #37
    mmm.. coffee JavaPF's Avatar
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    Default Re: Physics Program

    import java.util.Scanner;
     
    public class Force{
     
    public double CalculateForce(double first, double second){
    return first * second;
    }
     
    public static void main(String args[])
    {    
        double mass = 0;
        double acceleration = 0;
     
        Force formula = new Force();
        Scanner read = new Scanner(System.in);
     
        System.out.println("Enter Mass: ");
        mass = read.nextDouble();
     
        System.out.println("Enter Acceleration: ");
        acceleration = read.nextDouble();
     
        System.out.println("The Force is " + formula.CalculateForce(mass,acceleration));
    }
    }
    Please use [highlight=Java] code [/highlight] tags when posting your code.
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