| Simple Java question [message #366575] |
Fri, 09 April 1999 21:21  |
Brad
Messages: 12
Registered: April 1999
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Junior Member |
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Could you please help me with a java string thing.
This is what I have
change = change + ((Amount/5)*5); ;}
The problem is that I need to get the program to / Amount (a whole # user input between 1 and 100) by 5, so that the number I get is a whole one. I think it has something to do with int. But when it is divided by 5 it has to be a whole number so that after I * by 5 it becomes a rounded down #. How would you code this?
Also this is a simple thing (I think) the number entered in a different part of the code has to be between 1 and 100. How do you write if (Amount > 100 or Ie. If amount >100
if amount But it only took the first one.
Here is the code if you need it. I don;t think that you would be able to complie it though cause it is using some stupid thing that the teacher wrote (classes - SimpleRW).
Thanks
/*
** File: change.java
** Created: 8/4/99
** Author: Brad Schwede
*/
import java.io.*;
/**
* This program asks the user to enter an amount between
* (0-100) then calculates the amount of change given
* and the dinomination that it would be given in.
*
* This program uses the SimpleReader and SimpleWriter
* classes.
*/
public class testing {
public static void main (String[[]] args)
throws IOException
{
int change = 0;
int change50s = 0;
int change20s = 0;
int change10s = 0;
int change5s = 0;
int cents50 = 0;
int cents20 = 0;
int cents10 = 0;
int cents5 = 0;
int Amount =0;
SimpleReader in = new SimpleReader();
SimpleWriter out = new SimpleWriter();
out.print ("Enter the purchase amount 0-100:");
Amount = in.readInt(); //set up Amount
if (Amount > 100) {//THIS IS THE PART!!!!
out.println ("Are you blind? you old goat! I said 0-100"); }
else {
/*
* THis part here is the problem
*/
change = (change + (100 - Amount/5))*5; ;}
cents50 = cents50 + (change / 50);
change20s = change20s + (change - (cents50 * 50));
cents20 = change20s / 20;
change10s = change20s - (cents20 * 20) ;
cents10 = change10s / 10 ;
change5s = change10s - (cents10 *10);
out.println ("Your change of " + change +" is made up of:");
out.println (cents50 + " 50 cent pieces");
out.println (cents20 + " 20 cent pieces");
out.println (cents10 + " 10 cent pieces");
out.println (cents5 + " 5 cent pieces");
}
}
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| Re: Simple Java question [message #366578 is a reply to message #366575] |
Mon, 17 May 1999 10:12  |
MuthuKumar.P
Messages: 6
Registered: May 1999
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Junior Member |
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Hi,
change = change + ((Amount/5)*5); ;}
For this problem, think of truncating the result of change. Look for a command to truncate. Or try the following (if supports)
change = change + (int(Amount/5) * 5);
If amount >100
if amount For this you can use
if (amount > 1) && (amount Bye & let me know if this works
Muthu.
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| Re: Simple Java question [message #366579 is a reply to message #366575] |
Mon, 17 May 1999 10:12 |
MuthuKumar.P
Messages: 6
Registered: May 1999
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Junior Member |
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Hi,
change = change + ((Amount/5)*5); ;}
For this problem, think of truncating the result of change. Look for a command to truncate. Or try the following (if supports)
change = change + (int(Amount/5) * 5);
If amount >100
if amount For this you can use
if (amount > 1) && (amount Bye & let me know if this works
Muthu.
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] 
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