for highest price use static method max( double, double) of java.lang.Math class

Hi Friend,

Try the following code:

import java.util.*;
class Grocery{
    public static void main(String[] args){
    ArrayList list1=new ArrayList();
    ArrayList list2=new ArrayList();
    ArrayList list3=new ArrayList();
    Scanner input=new Scanner(System.in);
    int id=0;
    do{
    System.out.print("Enter Product ID: ");
    id=input.nextInt();
    if(id==-1){
    Collections.sort(list1);
    Collections.sort(list2);
    Collections.sort(list3);
    double sum=0;
    for(int i=0;i<list3.size();i++){
    sum+=Double.parseDouble(list3.get(i).toString());
    }
    System.out.println("The most expensive product is: \n ID is: "+list1.get(list1.size()-1)+"\nName: "+list2.get(list2.size()-1)+"\nPrice: "+list3.get(list3.size()-1));
    System.out.println("Average Price is: "+sum/list3.size());
    System.exit(0);
        }
        list1.add(id);
        System.out.print("Name: ");
        String name=input.next();
        list2.add(name);
        System.out.print("Price:");
        double price=input.nextDouble();
        list3.add(price);   
        System.out.println();
    }
    while(id!=-1);
    }
}

Thanks

thanks ..

but why you didn't put break ? becase the while is not stop when I run it !! and I think it's will be smaller when we use console ?

• I use JGrasp program !