Treehouse | Community | Maps

🤑 Join the Treehouse affiliate program and earn 25% commission!

Join our Live Career-Building Workshop: Launch Your Tech-Adjacent Career! ⭐ Register here!

🌟 Dreaming of a bright future? 🎓 Ask about the Treehouse Scholarship program! 🚀

Curious which AI tools Treehouse developers love? ⚙️ Check them out!

🫡 Treehouse for Military offers discounts to Veterans, service members and their families!

Newest
- Newest
- Active
- Unanswered
- Featured
All Topics

Felipe Murillo
3,605 Points
Stuck in MAP section of Java Data Structures

Posted December 11, 2017 5:12pm by Felipe Murillo

Felipe Murillo
3,605 Points
1 Answer
Cesar Manrique
3,708 Points
Bummer! Uh oh. java.lang.ClassCastException: sun.reflect.generics.reflectiveObjects.ParameterizedTypeImpl cannot be cas

Posted November 27, 2017 4:35am by Cesar Manrique

Cesar Manrique
3,708 Points
1 Answer
RUCHI MISHRA
2,968 Points
Not able to get expected output, as issue in my nested loops

Posted November 25, 2017 7:38pm by RUCHI MISHRA

RUCHI MISHRA
2,968 Points
2 Answers
RUCHI MISHRA
2,968 Points
Not able to get expected output

Posted November 25, 2017 7:34pm by RUCHI MISHRA

RUCHI MISHRA
2,968 Points
1 Answer
Matt Malone
11,437 Points
Not sure how to get category counts when category is just a string (not a collection).

Posted October 30, 2017 12:02pm by Matt Malone

Matt Malone
11,437 Points
3 Answers
Kevin Fernandez-Gonzalez
16,790 Points
help with map method

Posted October 28, 2017 3:17am by Kevin Fernandez-Gonzalez

Kevin Fernandez-Gonzalez
16,790 Points
1 Answer
Louis Nathan
2,598 Points
category

Posted October 21, 2017 1:56pm by Louis Nathan

Louis Nathan
2,598 Points
1 Answer
Diego Hernandez
7,200 Points
Error when checking Maps work

Posted October 20, 2017 10:07am by Diego Hernandez

Diego Hernandez
7,200 Points
0 Answers
Pascal Petruch
1,479 Points
Map of category-to-count always returns one count too much

Posted October 17, 2017 8:19pm by Pascal Petruch

Pascal Petruch
1,479 Points
1 Answer
Johannes Pedersen
1,006 Points
I need some help with Maps

Posted October 10, 2017 11:58am by Johannes Pedersen

Johannes Pedersen
1,006 Points
4 Answers
Herman Vicens
12,540 Points
Compile error !

Posted August 3, 2017 10:49pm by Herman Vicens

Herman Vicens
12,540 Points
2 Answers
isaac schwartzman
963 Points
no idea where to go from here

Posted August 3, 2017 4:34pm by isaac schwartzman

isaac schwartzman
963 Points
0 Answers
isaac schwartzman
963 Points
got this far in the map any tips or hints?

Posted August 2, 2017 6:37pm by isaac schwartzman

isaac schwartzman
963 Points
0 Answers
Mohamed Elkarraf
4,665 Points
Why I'm getting InvocationTargetException when Checking the work ?

Posted August 2, 2017 4:14am by Mohamed Elkarraf

Mohamed Elkarraf
4,665 Points
0 Answers
Elvin Roldan
1,473 Points
getCategoryCounts

Posted July 26, 2017 7:19pm by Elvin Roldan

Elvin Roldan
1,473 Points
1 Answer
Jan Willmann
4,387 Points
Why do we need this line of code?

Posted July 19, 2017 12:40pm by Jan Willmann

Jan Willmann
4,387 Points
0 Answers
PLUS

Steven Morimoto
Courses Plus Student 1,836 Points
Please help. I do not get the Maps quiz

Posted July 15, 2017 2:10am by Steven Morimoto

Steven Morimoto
Courses Plus Student 1,836 Points
2 Answers
Timothy Hilley
2,292 Points
the question itself doesnt make sense.

Posted July 8, 2017 4:02pm by Timothy Hilley

Timothy Hilley
2,292 Points
2 Answers
Pablo Viramontes
3,542 Points
what is the compilation problem??

Posted July 6, 2017 7:13am by Pablo Viramontes

Pablo Viramontes
3,542 Points
1 Answer
John Cuddihy
5,493 Points
category count is too much for me

Posted July 3, 2017 3:52pm by John Cuddihy

John Cuddihy
5,493 Points
1 Answer
Danilo ANRIA
1,571 Points
Need help on the Challenge Task

Posted June 29, 2017 7:44pm by Danilo ANRIA

Danilo ANRIA
1,571 Points
1 Answer
Rashadat Mirzayev
14,601 Points
Too complicated

Posted June 14, 2017 7:50pm by Rashadat Mirzayev

Rashadat Mirzayev
14,601 Points
2 Answers
Gleb Ermolaev
1,029 Points
I cannot solve this challenge

Posted May 18, 2017 8:41pm by Gleb Ermolaev

Gleb Ermolaev
1,029 Points
1 Answer
Andrew Trachtman
3,680 Points
A few questions on the challenge

Posted May 8, 2017 6:47am by Andrew Trachtman

Andrew Trachtman
3,680 Points
1 Answer
Olha Markova
2,050 Points
I am stuck with this chellange

Posted May 8, 2017 6:12am by Olha Markova

Olha Markova
2,050 Points
1 Answer
Olha Markova
2,050 Points
I get multiple errors

Posted May 6, 2017 9:39am by Olha Markova

Olha Markova
2,050 Points
1 Answer
Sara Pasinato
1,023 Points
I don't understand the error in this program

Posted April 12, 2017 12:08pm by Sara Pasinato

Sara Pasinato
1,023 Points
3 Answers
Atul Varma
4,285 Points
Error..?

Posted April 9, 2017 7:27am by Atul Varma

Atul Varma
4,285 Points
1 Answer
Luke Manca
2,527 Points
Blog.java add a new method called getCategoryCounts. It should return a Map

Posted April 7, 2017 2:00am by Luke Manca

Luke Manca
2,527 Points
1 Answer
Cristian Escamilla
1,626 Points
I think that i return a valid value..

Posted April 5, 2017 10:36pm by Cristian Escamilla

Cristian Escamilla
1,626 Points
1 Answer

Prev Page 2 of 6 Next

Posting to the forum is only allowed for members with active accounts.
Please sign in or sign up to post.