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What is the best way to sort an array in Java?

To sort an array of strings in Java, we can use Arrays.sort () function. If we have an ArrayList to sort, we can use Collections.sort () Solve DSA problems on GfG Practice.

What are the parameters of Arrays.sort() in Java?

In Java, Arrays is the class defined in the java.util package that provides sort () method to sort an array in ascending order. It uses Dual-Pivot Quicksort algorithm for sorting. Its complexity is O (n log (n)). It is a static method that parses an array as a parameter and does not return anything.

How do you reverse an array in Java?

We can reverse an Array in Java by using the in-place method. In this method, we can reverse the Array just by swapping the elements with each other and without using any other predefined methods or another Array. Like, we will swap the last element with the first element within the same Array and 2nd last element with 2nd element, and so on.

How can you sort an array using Java 8 Streams?

Java 8 provides the option of using streams which can be used to sort int [] array as: int [] sorted = (array).sorted ().toArray (); // option 1 Arrays.parallelSort (array); //option 2 The sorting algorithm is a parallel sort-merge that breaks the array into sub-arrays that are themselves sorted and then merged.

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