import java.util.Scanner;

class Invoice{

String partNumber;

String partDescription;

int itemPurchased;

double pricePerItem;

Invoice();

partnumber = "()";

partdescription = "()";

itemPurchased = 0;

pricePerItem = 0.0;

}

String getPartNumber(){

return partNumber;

}

String getPartDescription(){

return partDescription;

}

int getItemPurchased(){

return itemPurchased;

}

double getPricePerItem(){

return pricePerItem;

}

class InvoiceDemo{

public static void main(String args[]){

Scanner sc = new Scanner(System.in);

Invoice invoice = new Invoice();

public static void main(String args[]){

Scanner sc = new Scanner(System.in);

Invoice invoice = new Invoice();

System.out.println(" Enter part number:");

invoice.setPartNumber(sc.nextLine());

System.out.println("Enter part description:");

invoice.setPartDescription(sc.nextLine());

System.out.println("Enter item purchased:");

invoice.setItempurchased(sc.nextint());

System.out.println("Enter price per item:");

invoice.setPricePerItem(sc.nextDouble());

System.out.println(" Details of items purchasing-->");

System.out.println(" Part Number:"+invoice.getPartNumber());

System.out.println("nPart Description:"+invoice.getPartDescription());

System.out.println("nTotal Billing Amount:"+invoice.getInvoiceAmount());

}

}

double getInvoiceAmount(){

return(itemPurchased*pricePerItem);

}

void setPartNumber(String pn){

partNumber = pn;

}

void setPartDescription(String pd){

partDescription = pd;

}

void setPricePerItem(double ppi){

pricePerItem = ppi;

}

}

and i get this output

--jGRASP wedge2: working directory is [C:\Users\Bani\Documents] platform id is 2. ----jGRASP wedge2: actual command sent ["C:\Program Files\Java\jdk1.8.0_121\bin\javac.exe" -g Invoice.java]. ----jGRASP wedge2: pid for process is 10400. Invoice.java:9: error: expected partnumber = "()";

so please fix this error and update it