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Start your free trialDamjan Vlaic
19,244 Points---JAVA---
Can someone help me fix this acceptCustomer method in CallCenter.java pls? The task says:
This is a Call Center application. There is a group of Customer Support Representatives that assist Customers. When representatives become available they enter the queue. The acceptCustomer method gets called when a new customer phones in. I've left 3 things for you todo in the comments below.
All other code is only for your reference, no need to change it.
import java.util.ArrayDeque;
import java.util.Queue;
public class CallCenter {
Queue<CustomerSupportRep> mSupportReps;
public CallCenter(Queue<CustomerSupportRep> queue) {
mSupportReps = queue;
}
public void acceptCustomer(Customer customer) {
CustomerSupportRep csr;
/********************************************
* TODO (1)
* Wait until there is an available rep in the queue.
* While there is not one available, playHoldMusic
* HINT: That while assignmentcheck loop syntax we used to
* read files seems pretty similar
********************************************
*/
/********************************************
* TODO (2)
* After we have assigned the rep, call the
* assist method and pass in the customer
********************************************
*/
/********************************************
* TODO (3)
* Since the customer support rep is done with
* assisting, put them back into the queue.
********************************************
*/
}
public void playHoldMusic() {
System.out.println("Smooooooth Operator.....");
}
}
import java.util.List;
import java.util.ArrayList;
public class CustomerSupportRep {
private String mName;
private List<Customer> mAssistedCustomers;
public CustomerSupportRep(String name) {
mName = name;
mAssistedCustomers = new ArrayList<Customer>();
}
public void assist(Customer customer) {
System.out.printf("Hello %s, my name is %s, how can I assist you.%n",
customer.getName(),
mName);
System.out.println("...");
System.out.println("Is there anything else I can help you with?");
mAssistedCustomers.add(customer);
}
public List<Customer> getAssistedCustomers() {
return mAssistedCustomers;
}
}
public class Customer {
private String mName;
public Customer(String name) {
mName = name;
}
public String getName() {
return mName;
}
}
1 Answer
Steve Hunter
57,712 Pointshi there,
There's three TODO
instructions. The first wants you to create a while
loop that calls the playHoldMusic()
method while there is no-one in the mSupportReps
queue. Use peek()
on the queue, and loop while
that returns null
. Call the playHoldMusic
method inside the loop.
Next, you want to assign the result of calling poll()
on the mSupportReps
queue into the existing csr
variable.
Next, call assist()
on csr
and pass in the customer
received as an argument.
Last, add
the csr
back into mSupportReps
.
I hope that helps.
Steve.
Damjan Vlaic
19,244 PointsDamjan Vlaic
19,244 Pointsfor now I typed this but I don't know what to pass in to assist method, can you help pls Steve?
Steve Hunter
57,712 PointsSteve Hunter
57,712 PointsThe
acceptCustomer
method you are coding inside receives an argument calledcustomer
- pass that in.