What is the output of this program? int array[] = new int [5]; for (int i = 5; i > 0; i--) array[5 - i] = i; Arrays.sort(array); System.out.print(Arrays.binarySearch(array, 4));
Question
What is the output of this program? int array[] = new int [5]; for (int i = 5; i > 0; i--) array[5 - i] = i; Arrays.sort(array); System.out.print(Arrays.binarySearch(array, 4));
Solution
The output of this program is 1.
Here's the step-by-step explanation:
- An array of size 5 is created.
- A for loop is used to fill the array in reverse order, starting from 5 to 1.
- The array is then sorted in ascending order using Arrays.sort() method. So, the array becomes [1, 2, 3, 4, 5].
- Arrays.binarySearch() method is used to find the index of element 4 in the sorted array. Since arrays in Java are 0-indexed, the index of element 4 is 1. So, the output of the program is 1.
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