Help with IF ELSE

**LiquidJava** · 09-21-2010, 01:44 AM

I got this question to complete in college recently. I am new to Java so slowly learning, there could be some mistakes

Calculations and if – else (the sponsored cyclist). A cyclist is sponsored at the rate of 7c for each km up to 10 km, and 10c for each km in excess of 10km. Write a program which will ask for the cyclist’s first name, initial and last name and the distance cycled. Your program should calculate the money due, then display a dialog containing the cylist’s full name (first name + initial + last name), the distance cycled, and the money due. Note here that the problem involves 2 different rates if the number of km exceeds 10 so, for example, if the cyclist is sponsored for 15km then the first 10km are sponsored at 7c and the remaining 5 km are sponsored at 10c giving a total of 70c + 50c i.e. €1.20. Your solution should work correctly no matter what the distance is.

This is what I have done so far

Java Code:

import javax.swing.JOptionPane;
public class Cyclist{
	public static void main (String args []){

		String firstName,lastName,initialAsString;
		char initial;
		int distanceTravelled;


		firstName = JOptionPane.showInputDialog ("Please enter your name");
		initialAsString = JOptionPane.showInputDialog ("Please enter your initial");
		initial = initialAsString.charAt(0);
                lastName = JOptionPane.showInputDialog ("Please enter your last name");
		distanceTravelled = Integer.parseInt (JOptionPane.showInputDialog ("Please enter the distance travelled"));

		if (distanceTravelled < 10){
			JOptionPane.showMessageDialog(null, "Your name is: "+firstName+ " ."+initial +
				" "+lastName+"\nDistance Travelled: "+distanceTravelled+"km\nThe amount " +
					" of money due is " +distanceTravelled*7);
		}else{

		if (distanceTravelled > 10){
			JOptionPane.showMessageDialog(null, "Your name is: "+firstName+ " ."+initial +
				" "+lastName+"\nDistance Travelled: "+distanceTravelled+"km\nThe amount " +
					" of money due is " +distanceTravelled*10);
		}
     
          }

    }

}

I'm having a problem with this part

if the cyclist is sponsored for 15km then the first 10km are sponsored at 7c and the remaining 5 km are sponsored at 10c giving a total of 70c + 50c i.e. €1.20. Your solution should work correctly no matter what the distance is.

I would appreciate some help. Thanks

**jlmp** · 09-21-2010, 01:59 AM

Your problem is algorithmic...you can make different solutions for this:

I am editing this: Lets see (cause i am sleepless), think about this, when you take a number which is over 10 all you have to do is take the first 10 and multiply with 7 and the rest and multiply it with 10...so

if you have 25 you can do something like this 25-10=15!

so,

Java Code:

if (distanceTravelled > 10){
// multiply 10*7 and put the value in a temp int
// distanceTravelled=distanceTravelled-10;
// then mutiply the distanceTravelled with 10 and then add this with temp
}

This maybe a solution for your problem but i am saying that u can solve it with different ways!