Perform Binary Search on Java ArrayList
import java.util.ArrayList; import java.util.Collections; public class Main { public static void main(String[] args) { ArrayList<String> arrayList = new ArrayList<String>(); arrayList.add("1"); arrayList.add("4"); arrayList.add("2"); arrayList.add("5"); arrayList.add("3"); Collections.sort(arrayList); System.out.println("Sorted ArrayList contains : " + arrayList); int index = Collections.binarySearch(arrayList, "4"); System.out.println("Element found at : " + index); } }