How To Sort Integer Array In Java Ascending Descending Order Java Using sort () method of arrays class (optimal) approach 1: using bubble sort. algorithm: compare adjacent elements with each other. use nested for loop to keep track. swap the elements if the first element is greater than the second element. example. java. class gfg {. It's not directly possible to reverse sort an array of primitives (i.e., int[] arr = {1, 2, 3};) using arrays.sort() and collections.reverseorder() because those methods require reference types (integer) instead of primitive types (int).
How To Sort Arrays In Ascending And Descending Order In Java You To sort the array of objects in both ascending and descending order in java, we can use the arrays.sort() method with the comparator. in this article, we will learn how to sort an array of objects using arrays.sort(). sorting an array of objectwith array of object what it really means is an array storing any type of object can be integer, string or. To sort the array in descending order, we did this: arrays.sort(arr, collections.reverseorder());. the first parameter is the array arr which will be sorted in ascending order. the second parameter – collections.reverseorder() – will then reverse the order of the sorted array so it is arranged in descending order. Sorting a primitive array in descending order is not quite as simple as sorting it in ascending order because java doesn’t support the use of comparators on primitive types. to overcome this shortfall we have a few options. first, we could sort our array in ascending order and then do an in place reversal of the array. The `arrays.sort ()` method is applied to `strarray`, and by passing `collections.reverseorder ()` as the comparator, the array is sorted in descending order. 3. upon execution, the program outputs the sorted array in descending order, displaying the vehicles from highest to lowest lexicographical order.
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