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Courses Plus Student 664 PointsUnable to find the answer please help
I am not able to figure out the how we can pass parameter in the get Method and I want to know what is this type of style of coding . Also
What should I return here , bcz I think as we have the parameter in the get method , How can i access the parameter and what to return. Do you think we have enough info for the question to solve
package com.example.model;
import java.util.Map;
import java.util.Set;
import java.util.HashMap;
public class Contact {
private String mFirstName;
private String mLastName;
private Map<String, String> mContactMethods;
public Contact(String firstName, String lastName) {
mFirstName = firstName;
mLastName = lastName;
/* This stores contact methods by name
* eg: "phone" => "(555) 555-1234"
*/
mContactMethods = new HashMap<String, String>();
}
public void addContactMethod(String method, String value) {
mContactMethods.put(method,value);
}
/**
* Returns the available contact methods. eg: phone, pager,
*
* @return The name of the contact methods that are available
*/
public Set<String> getAvailableContactMethods() {
// FIXME: This should return the current contact method names.
return mContactMethods.keySet();
}
/**
* Returns the value for the contact method if it exists,
*
* @param methodName The name of the contact method to look up.
* @return The name of the contact methods that are available
*/
public String getContactInfo(String methodName) {
// FIXME: return the value for the passed in *methodName*
return getAvailableContactMethods(methodName);
}
public String getFirstName() {
return mFirstName;
}
public String getLastName() {
return mLastName;
}
}
1 Answer
Trent Christofferson
18,846 Pointsinside of
public String getContactInfo(String methodName) {
// FIXME: return the value for the passed in *methodName*
return getAvailableContactMethods(methodName);
}
instead of
return getAvailableContactMethods(methodName);
use
return mContactMethods.get(methodName);
when calling the get method on a hashmap you pass in a key and it returns it's value.