I want to convert a List to a List so that each object on my new list includes the first element of each String[].
I\'m coding a project to store an array of objects, probably in an arraylist. So, my object has data elements, getters and setters. I do not have an idea how to access the elements of the object.
I imported a List of Strings from a file and put them into an arrayList.I am trying to chop of the end of these arrays, so I\'m putting them into a separate String format
My Android app ne开发者_开发技巧eds to populate the ListView using the data from an ArrayList.
A stable sort is a sort that maintains the relative ordering of elements with the same value. The docs on ArrayList.Sort say that when an IComparer is provided the sort is stable:
I have a two-dimensional ArrayList to store Block objects to use later. However, it won\'t let me call Block methods on the objects when I get them by their index in the list. Here is the code where I
suppose I have an arraylist of the form ArrayList<Arr开发者_StackOverflow社区ayList<E>> ... what would be the most elegant way to convert this into 2 dimensional arrays This assumes you do
my project is using txt file as db, each line in the txt file will be something like \"abc,cdf,ghi,zkl\"
So, normally ArrayList.toArray() would return a type of Object[]....but supposed it\'s an Arraylist of object Custom, how do I make toArray() to return a type of Custom[] rather than Obj开发者_运维百
suppose I have arraylist of integers...is there a way that I can generate a random permutation/arrangement of the e开发者_C百科lements in the arraylist
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