Thread: Physics Program

i need a simple physics formula. F=ma. Please create a program that has you input the mass and the acceleration and return the force. PLEASE i need this by monday. If you can please answer my other thread i need that too. Also add comments to each line of code about what it does with a // and then the cod. Much aprecciated.

thank you but i also need the code for the prompts to enter the numbers for mass and acceleration. thank you in avdance.

Haha, I love how you ended that with Regards. Anyway, I know how to do it i just want to make sure that i get it right. If i put up the code would you help me with my mistakes?

public static [B]Force[/B] readInput()
{
Double a,b,c;
System.out.println("Please input mass.);
a=SavitchIn.readLineDouble();
System.out.println("Please input acceleration");
Force f = new Force(a,b);
return f;
}

How's that? It's a start right.

aww forgot the savitch.in for the second input sorry.

savitch.In is the java code that can be exchaged for something else. I use Blujay and my computer is pregrammed to accept savitch.In i do not know the exact word. And about the class, that's where i get iffi. Send me a random class and i can make it into the Force class but I'm not sure how to exactly construct a class. I'm really sorry. I have tried but none of the stuff i learn seems to stick.

class Force{
     public Force(double a, double b){
          public int mass;
          public int acceleration;//is that right?
     }
}//end of class

"you can't have global variables defined within a function"

yeah i totally understood what that meant So is that all the code. I just put that all together and thats my code?

i simply want a program in which it prompts you to enter the mass and the acceleration and then it returns the force. what is hard to understand about that?

I think Chris is confused as to how you want to go about achieving this.

i just want him to put the code that is required to do the formula for F=ma. If you can please do it and notate it. This is my final project for programming class and i have just barely been getting by. I know now that I am not meant to be a programmer I want to be an Engineer but I aslo want to pass this class. So please just write the code and write what each line does.

public class Force extends Object
{
private double mass;
private double accel;
private double force;
public [B]Force[/B]
{
    mass=0;
    accel=0;
    force=1;
}
public [B]Force[/B]e(double a, double b)
{
    mass=a;
    accel=b;
    force=1;
}
public static [B]Force[/B] readInput()
{
    double a,b;
  public static Force readInput()
{
Double a,b,c;
System.out.println("Please input mass.);
a=SavitchIn.readLineDouble();
System.out.println("Please input acceleration");
b=SavitchIn.readLineDouble();
Force f = new [B]Force[/B](a,b);
return f;
}
 
public void [B]showData[/B]()
{
    System.out.[B]println[/B]("The force is "+force);
}

Thank You! Is that everything. I have tried studying out of class but the website feel so cluttered and its hard to understand but I'll keep trying. I greatly appreciate this!

That is everything.

Sorry to bother again but when i try to compile it stops me at double a=0 and it says ";" expected so i added the semicolon but it still says the same thing. any ideas.

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));
}
}

here ya go. Sorry its late and I forgot the semi-colons.

it still wont work the semi colon is there but it doesnt work