sort list based on another list java
Connect and share knowledge within a single location that is structured and easy to search. Thanks for your answer, but I get: invalid method reference: "non-static method getAge() cannot be referenced from a static context" when I call interleaveSort. The solution below is the most efficient in this case: Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. Most of the solutions above are complicated and I think they will not work if the lists are of different lengths or do not contain the exact same items. See more examples here. People will search this post looking to sort lists not dictionaries. The signature of the method is: It also returns a stream sorted according to the provided comparator. To learn more about comparator, read this tutorial. 1. Is it possible to create a concave light? We can sort the entries in a HashMap according to keys as well as values. that requires an extra copy, but I think to to it in place is a lot less efficient, and all kinds of not clear: Note I didn't test either, maybe got a sign flipped. Take a look at this solution, may be this is what you are trying to achieve: O U T P U T Did any DOS compatibility layers exist for any UNIX-like systems before DOS started to become outmoded? Theoretically Correct vs Practical Notation. In addition, the proposed solution won't work for the initial question as the lists X and Y contain different entries. If you want to do it manually. How do I sort a list of dictionaries by a value of the dictionary? You can have an instance of the comparator (let's call it factoryPriceComparator) and use it like: Collections.sort (factoriesList, factoryPriceComparator);. This work is licensed under a Creative Commons Attribution-NonCommercial- ShareAlike 4.0 International License. I think that the title of the original question is not accurate. More elegant code or using some built in Java class? You can setup history as a HashMap or separate class to make this easier. Also easy extendable for similar problems! sorting - Java Sort particular index - Stack Overflow Making statements based on opinion; back them up with references or personal experience. Other answers didn't bother to import operator and provide more info about this module and its benefits here. Zip the two lists together, sort it, then take the parts you want: Also, if you don't mind using numpy arrays (or in fact already are dealing with numpy arrays), here is another nice solution: I found it here: Not the answer you're looking for? More general case (sort list Y by any key instead of the default order), http://scienceoss.com/sort-one-list-by-another-list/, How Intuit democratizes AI development across teams through reusability. This class has two parameters, firstName and lastName. Application of Binary Tree. To avoid having a very inefficient look up, you should index the items in listB and then sort listA based on it. The nature of simulating nature: A Q&A with IBM Quantum researcher Dr. Jamie We've added a "Necessary cookies only" option to the cookie consent popup. 2) Does listA and listB contain references to the same objects, or just objects that are equivalent with equals()? Is there a solution to add special characters from software and how to do it, Minimising the environmental effects of my dyson brain, The difference between the phonemes /p/ and /b/ in Japanese.
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