number « List « Java Collection Q&A

1. Counting the number of occurrences of each item in a list    stackoverflow.com

I have a streaming input which has repeated values. I can use any data structure but I have to count the number of occurence of each element. Suppose I have a ...

2. Why is List not a sub-type of List

3. Truncating a list to a given number of elements in java    stackoverflow.com

There is any method to truncate a list in java, for example, to the first 100 elements, discarding the others? (I mean, without iterating and/or copying/deleting elements one by one)

4. Achieve the xml hierarchy structure having an ordered list with level numbers    stackoverflow.com

I have a list of numbers which represents the levels in a xml tree. For example I have the folowwing list:

 0, 1, 2, 2, 1

5. Java Link list error message when executed @number    stackoverflow.com

Whenever i run the method, i get an error which comes with as numbers The following is what i have as my code.

public String getAccount()
{
   String s = "Listing the ...

6. Initializing List with given number of nulls without loop?    stackoverflow.com

Can a List<T> be initialized to contain a given number of nulls, where T is a type parameter of the class of which the list is a member? I sure can ...