ClassCastException « Exception « Java Thread Q&A

1. Trying to write priority queue in Java but getting "Exception in thread "main" java.lang.ClassCastException"    stackoverflow.com

For my data structure class, I am trying to write a program that simulates a car wash and I want to give fancy cars a higher priority than regular ones using ...

2. Exception in thread "main" java.lang.ClassCastException:    stackoverflow.com

I have been using a driver to test one of my data structures(Binary Search Tree) and i have come across this issue. -It happens when i insert more than 2 objects into ...

3. Exception in thread "main" java.lang.ClassCastException    forums.oracle.com

lineSet.add(new DeliveryHouseDetails(line)); This is line 20 that the stacktrace refers to. The problem is that lineSet is a TreeSet and it is grumbling because the thing you are trying to add to it (a new DeliveryHouseDetails) does not implement Comparable. Edited by: pbrockway2 on Apr 7, 2008 2:40 PM In general a Set does not worry about whether its contents are ...

4. Exception in thread "main" java.lang.ClassCastException: java.util.ArrayLis    forums.oracle.com