Web Reference: Apr 14, 2025 · We are given the details of marks scored by students in form of a HashMap, where the name of the student is the Key and the marks scored is the Value. Our task is to sort the map according to the key values i.e the names of the students in the alphabetical (lexicographical) order. Mar 26, 2025 · In this article, we reviewed a number of ways to sort a HashMap by key or value. We also learned how to do this by implementing Comparable when the attribute is a custom class. Apr 23, 2009 · The basic idea is if you have sort a map using keys then create a TreepMap from your Map which will sort the map by keys. And in case of sorting by values create a list from entrySet and sort the list using comparator interface.
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