I understand that HashSet is based on HashMap implementation but is used when you need unique set of elements. So why in the next code when putting same objects into the map and set we have size of bo
I want开发者_JS百科 to create a class that inherits from CollectionBase, but it seems that it does not support LINQ extensions!
I need to create clusters that contain elements. The clusters should be created at run-time and elements to be added to it. How do I do it 开发者_开发百科in Java?
¡Holla pros, I have this piece of code, which is partially working. Based 开发者_StackOverflow社区on some conditions I want to make visible some of the list elements. Currently only the alert works.
I have a list of more than 37K items, and I already implemented hashCode(), equals(), so I wonder Collections.binarySearch() can hel开发者_JAVA百科p improve the performance and faster than indexOf() m
Basically, I want to display a list of all the students (have their names on the far left side), and on each row (each student) display each date for the month selected in the comboBox.
I have recently noticed that inside the collection objects contained in System.Collections.Concurrent namespace it is common to see Collection.TrySomeAction() rather then Collection.SomeAction().
I have a stupid yet braincracker issue about casting types. As you can see from the code I have a variable lprod_monthylReport that depending on the ytm value can be a List<Monthly_Report> or si
This question already has answers here: Why doesn't Java Map extend Collection? (9 answers) Closed 8 years ago.
Am somewhat confused with Java\'s compareTo() and Collections.sort() behavior. I am supposed to sort a column in ascending order using compareTo() & Collectio开发者_StackOverflow社区ns.sort().
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