Decimal Problem Issue

[notbad]

Hi All hope someone can save my life.

I have got the calculations working, but not sure how to round up to pence and pound (round up to 2 decimal places), but on my final output its displaying 134.873563763 for example when I need 134.87 for example. I have highlighted the code below which I seem to be having problems with

public class ProcessCurrency {

static final int min_comm = 500;

public static void main(String[] argv) {


double commRate, foreignAmount, exchangeRate, penceAmount,actPayOut, actPoundPence;
String currencyToConverFrom;
double comm = 0;
double commPoundPence = 0;
int trans=0;
double totForeign=0, totSterling=0, totHandouts=0, totComission=0, avgHand=0,forSter=0;

System.out.print("Currency to convert from: ");
currencyToConverFrom = UserInput.readString();

System.out.print("Rate of exchange to Sterling pence: ");
exchangeRate = UserInput.readDouble();

System.out.print("commision Rate: ");
commRate = UserInput.readDouble();

System.out.print("Amount to exchange: ");
foreignAmount = UserInput.readDouble();




while (foreignAmount != 0){
penceAmount = foreignAmount / exchangeRate;

System.out.println(foreignAmount + " " + currencyToConverFrom + " is "+ penceAmount + " pence");



if (penceAmount < min_comm)
System.out.println("Amount too small");
else {
comm = penceAmount * (commRate/100);
trans++;
if (comm < min_comm){
comm = 500;
}// PAmt<min100);

System.out.println("Commission is "+(int)(comm/100)+" pounds "+(int)(comm%100)+" pence ");

actPayOut = penceAmount - comm;

actPoundPence = actPayOut;

System.out.println("Actual sterling amount is "+(int)actPoundPence/100+" pounds "+(int)(actPayOut%100)+" pence");

totForeign+=foreignAmount;
totSterling+=penceAmount;
totHandouts+=actPayOut;
totComission+=comm;
avgHand = totHandouts/trans;
forSter = totForeign/totHandouts;

System.out.println(foreignAmount + " " + currencyToConverFrom +" is "+ penceAmount%100 +"; commission "+comm/100+" GBP; payout" + actPayOut/100 + " GBP");
}//end else

System.out.print("Amount to exchange: ");
foreignAmount = UserInput.readDouble();
}//end while


System.out.println("Transactions " + trans);
System.out.println("Total "+ currencyToConverFrom +" received " + totForeign);
System.out.println("Total sterling value " + totSterling);
System.out.println("Total handouts " + totHandouts);
System.out.println("Total Commission " + totComission);
System.out.println("Average handout " + avgHand);
System.out.println(currencyToConverFrom +" per pound " + forSter);


}

}

[oceanebelle]

Read about the DecimalFormat Class.

[oceanebelle]

And in java 1.5 you can also use String.format

here is sample code:

double nd = -123.456789d;
		double pd = 987.656789d;
		System.out.println(String.format("Rounded Value is %1$.2f and full Value is %1$f", nd));
		System.out.println(String.format("Rounded Value is %1$.2f and full Value is %1$f", pd));

For the flags and converstion types and the format read this up.