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| class BinarySearch { | |
| int binarySearch(int arr[], int x) { | |
| int l = 0, r = arr.length - 1; | |
| while (l <= r) { | |
| int m = l + (r - l) / 2; | |
| //x değeri ortanca değer mi kontrol et | |
| if (arr[m] == x) | |
| return m; | |
| // x ortanca değerden büyükse, sol yarıyı görmezden gelir | |
| if (arr[m] < x) | |
| l = m + 1; | |
| // x ortanca değerden küçükse, sağ yarıyı görmezden gelir | |
| else | |
| r = m - 1; | |
| } | |
| // x değeri dizide bulunamadıysa -1 değerini döner | |
| return -1; | |
| } | |
| public static void main(String args[]) { | |
| BinarySearch search = new BinarySearch(); | |
| int arr[] = { 1, 3, 5, 7, 9 }; | |
| int n = arr.length; | |
| int x = 7; | |
| int result = search.binarySearch(arr, x); | |
| if (result == -1) | |
| System.out.println("Element not present"); | |
| else | |
| System.out.println("Element found at " | |
| + "index " + result); | |
| } | |
| } |
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