annoying error.

im sure its just a simple error but i can't see it
where it is yellow i get '(' expected.. any help appreciated.

Code :

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public class ProcessCurrency {
 
    static final int MINICOM = 500;
[COLOR="Yellow"]    public static void main string(String[] argv) {[/COLOR] 
 
        double amtEx;
        double commission, cash;
        double totalAmt =0, totalSterling=0, totalCash=0, totalComm=0
        int transaction = 0;
 
        UserInput.prompt("currency to convert from");
        sterling currency =UserInput.readString();
 
        UserInput.prompt("Rate of exchange to sterling pence");
        double exRate = UserInput.readDouble();
 
        UserInput.prompt("Amount to Exchange");
        amtEx = UserInput.readDouble();
 
            while (amtEx >0) {
 
                double penceAmt = (amtEx/exRate);
                int pAmt = (int) (penceAmt *100);
                double sterling = pAmt/100;
 
                System.out.println(amtEx + " " + currency + " is " + sterling/100 = "pence")
 
                if (sterling<=MINICOMM) {
                   System.out.println("Ammount to small"); 
                }//end if
 
                else {
                    commission = (sterling * commRate/100);
 
                    if(commission <MINICOMM) {
                        commission = MINICOMM;
 
                    }
 
                    System,out.println("commission " + commission/100 + " GDP")
 
                    cash = sterling - commission; 
 
                    System.out.println (" ; payout " = cash/100 + " GDP");
 
                    totalAmt = totalAmt + amtEx;
                    totalSterling = totalSterling + sterling;
                    totalCash = totalCash + cash; 
                    totalComm = totalcomm + commission;
                    transaction++;
 
                }//end else
 
                System.out.println("\nAmount to exchange2");
                amtEx = UserInput.readDouble();
 
            }//end while
 
            System.out.println (" Transactions " + transaction );
            System.out.println (" Total " + currency + " recieved " + totalAmt);
            System.out.println (" Total sterling value " + totalSterling / 100);
            System.out.println (" Total handouts " + totalCash/ 100);
            System.out.println (" Total commission " + totalComm / 100);
            System.out.println (" Average handout " + totalCash / 100 / transaction);
 
            System.out.println ( currency + " per pound " + totalAmt * 100 / totalCash );
 
        }//end of main
 
    }// end of class
 
 
// Put your local declarations here
 
    // Prompt and read
 
    // Compute and print
 
    } // end of main
 
} // end class

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This is because that line needs to look like this.

Code :

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    public static void main(String[] argv) {

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// Json

now im getting a new error where its red it says cannot find symbol - class sterling.

Code :

---

public class ProcessCurrency {
 
    static final int MINICOM = 500;
    public static void main(String[] argv) {
 
        double amtEx;
        double commission, cash;
        double totalAmt =0, totalSterling=0, totalCash=0, totalComm=0;
        int transaction = 0;
 
 
        UserInput.prompt("currency to convert from");
[COLOR="DarkRed"]        sterling currency =UserInput.readString();[/COLOR] 
 
        UserInput.prompt("Rate of exchange to sterling pence");
        double exRate = UserInput.readDouble();
 
        UserInput.prompt("Amount to Exchange");
        amtEx = UserInput.readDouble();
 
            while (amtEx >0) {
 
                double penceAmt = (amtEx/exRate);
                int pAmt = (int) (penceAmt *100);
                double sterling = pAmt/100;
 
                System.out.println(amtEx + " " + currency + " is " + sterling/100 = "pence");
 
                if (sterling<=MINICOMM) {
                   System.out.println("Ammount to small"); 
                }//end if
 
                else {
                    commission = (sterling * commRate/100);
 
                    if(commission <MINICOMM) {
                        commission = MINICOMM;
 
                    }
 
                    System.out.println("commission " + commission/100 + " GDP");
 
                    cash = sterling - commission; 
 
                    System.out.println (" ; payout " = cash/100 + " GDP");
 
                    totalAmt = totalAmt + amtEx;
                    totalSterling = totalSterling + sterling;
                    totalCash = totalCash + cash; 
                    totalComm = totalcomm + commission;
                    transaction++;
 
                }//end else
 
                System.out.println("\nAmount to exchange2");
                amtEx = UserInput.readDouble();
 
            }//end while
 
            System.out.println (" Transactions " + transaction );
            System.out.println (" Total " + currency + " recieved " + totalAmt);
            System.out.println (" Total sterling value " + totalSterling / 100);
            System.out.println (" Total handouts " + totalCash/ 100);
            System.out.println (" Total commission " + totalComm / 100);
            System.out.println (" Average handout " + totalCash / 100 / transaction);
 
            System.out.println ( currency + " per pound " + totalAmt * 100 / totalCash );
 
        }//end of main
 
    }// end of class

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Do you have a class called sterling, or is it Sterling?

the only class i have is totalSterling=0, but i've tried to create a variable sterling and it still gives an error.

Code :

---

public class ProcessCurrency {
 
    static final int MINICOM = 500;
    public static void main(String[] argv) {
 
        double amtEx;
        double commission, cash;
        double totalAmt =0, totalSterling=0, totalCash=0, totalComm=0;
        int transaction = 0 ;
 
 
 
 
        UserInput.prompt("currency to convert from");
        Sterling currency =UserInput.readString();
 
        UserInput.prompt("Rate of exchange to sterling pence");
        double exRate = UserInput.readDouble();
 
        UserInput.prompt("Amount to Exchange");
        amtEx = UserInput.readDouble();
 
            while (amtEx >0) {
 
                double penceAmt = (amtEx/exRate);
                int pAmt = (int) (penceAmt *100);
                double sterling = pAmt/100;
 
                System.out.println(amtEx + " " + currency + " is " + sterling/100 = "pence");
 
                if (sterling<=MINICOMM) {
                   System.out.println("Ammount to small"); 
                }//end if
 
                else {
                    commission = (sterling * commRate/100);
 
                    if(commission <MINICOMM) {
                        commission = MINICOMM;
 
                    }
 
                    System.out.println("commission " + commission/100 + " GDP");
 
                    cash = sterling - commission; 
 
                    System.out.println (" ; payout " = cash/100 + " GDP");
 
                    totalAmt = totalAmt + amtEx;
                    totalSterling = totalSterling + sterling;
                    totalCash = totalCash + cash; 
                    totalComm = totalcomm + commission;
                    transaction++;
 
                }//end else
 
                System.out.println("\nAmount to exchange2");
                amtEx = UserInput.readDouble();
 
            }//end while
 
            System.out.println (" Transactions " + transaction );
            System.out.println (" Total " + currency + " recieved " + totalAmt);
            System.out.println (" Total sterling value " + totalSterling / 100);
            System.out.println (" Total handouts " + totalCash/ 100);
            System.out.println (" Total commission " + totalComm / 100);
            System.out.println (" Average handout " + totalCash / 100 / transaction);
 
            System.out.println ( currency + " per pound " + totalAmt * 100 / totalCash );
 
        }//end of main
 
    }// end of class

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You are trying to create a variable called 'currency' which can hold an object of type Sterling, but it seems you haven't written a class called Sterling, hence the compiler error.

how could i correct this without creating a new class, the classes i have used are Currency, ProcessCurrency and UserInput.

I think you just want currency to be a String i.e.

Code :

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String currency =UserInput.readString();

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