Can't sort out the following errors...

Question

continued from routing system message.....
*****CODE****
package routingSystem;
public class Router {
//attributes
private Machine machineArray[]; //this array is of type Machine. the name
// could be different.
private Machine packingMachine; //The machines that get passed into this class - need to use
//these in the code
private Food processedFood;
//Constructor.
public Router(Machine machineArray []) {
processedFood = null;
public void run(Food processedFood) {
this.processedFood = processedFood;
Machine shortestMachine = machineArray[0];
for (int i = 0; i<machineArray.length; i++){  //check if you need machineArray.length OR use i<machineArray.numberItemsWaiting() method.//
if (machineArray.numberItemsWaiting() < shortestMachine.numberItemsWaiting()) {
shortestMachine = machineArray[i];
shortestMachine.addItem(processedFood); //check machine method names for adding food to the queue.
****end of code****
errors:
Error(12,11): class Food not found in class routingSystem.Router
Error(20,19): class Food not found in class routingSystem.Router
Error(29,23): method addItem(<any>) not found in class routingSystem.Machine
any help would be appreciated...

Answer 1

Error(12,11): class Food not found in class
routingSystem.Router
Error(20,19): class Food not found in class
routingSystem.RouterThese errors are because your code refers to the class Food
but the compiler can't find the class Food.
Is the class Food in the same "routingSystem" package?
Otherwise, you need to import it with a line like
import Food;
goes after the package declaration before the class declaration
Error(29,23): method addItem(<any>) not found in class
routingSystem.MachineYou're invoking a method here:
shortestMachine.addItem(processedFood);
The class of shortestMachine is Machine and the error message says that
you can't invoke addItem(...) on Machine because Machine has no such method. Check your Machine class. Did you write an addItem method?
Fix the Food bug first and recompile - sometimes later bugs disappear when you fix earlier bugs, anyway.
Jean