delete duplicates in java arraylist

Question

Thanks Marko. I rewrite the code. try to make it simple. this time it can really compile. but it can only delete duplicate items sit next to each other. for example, if i put in

Answer 1

SetListIterator is a class indirectly referenced by your code, but it is not on the classpath. When setting up your project you forgot to copy that source file in addition to SetListType, or it could be that you are compiling this outside an IDE and simply failed to compile that class.