Please help with Java program output:

Input:

$5$ Cheese; $11$ Foil, $7$ Socks, $-1$

CallProduct.java

$-$

import java.util.ArrayList;

import java.util.Scanner;

public class CallProduct $\{$

$$public static void main$($String$[]$ args$)\{$

$$ Scanner scnr $=$ new Scanner$($System$.$in$)$;

$$ ArrayList productList $=$ new ArrayList$()$;

$$ int currPrice;

$$ String currName;

$$ int i;

$$ Product resultProduct;

$$ currPrice $=$ scnr$.$nextInt$()$;

$$ while $($currPrice $>=0)\{$

$$resultProduct $=$ new Product$()$;

$$currName $=$ scnr$.$next$()$;

$$resultProduct$.$setPriceAndName$($currPrice$,$ currName$)$;

$$productList$.$add$($resultProduct$)$;

$$currPrice $=$ scnr$.$nextInt$()$;

$\}$

$$ resultProduct $=$ productList.get$(0)$;

$$ for $($i $=0$; i $<$ productList.size$()$; $++$i$)\{$

$$if $($productList$.$get$($i$).$getPrice$()<$ resultProduct.getPrice$())\{$

$$ resultProduct $=$ productList.get$($i$)$;

$\}$

$\}$

$$ System.out.println$($resultProduct$.$getName$()+"$: $"+$ resultProduct.getPrice$())$;

$\}$

$\}$

Product.java

$-$

public class Product extends CallProduct $\{$

$$private int price;

$$private String name;

$$public void setPriceAndName$($int productPrice, String productName$)\{$

$$ price $=$ productPrice;

$$ name $=$ productName;

$\}$

$$public int getPrice$()\{$

$$ return price;

$\}$

$$public String getName$()\{$

$$ return name;

$\}$

$\}$

$-$

Also, if you would be able to help understand how to run multiple classes in one java file, I would appreciate it$.$ I am using my own compiler for java code but I am having a hard time understanding how to run both CallProduct.java and Product.java at the same time, if it is even possible. Thank you.