import java.util.ArrayList;
import java.util.Collections;
public class BinarySearchForArrayList {
public static void main(String[] args) {
// TODO Auto-generated method stub
ArrayList arrayList = new ArrayList();
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);
//search an element using binarySearch method of Collections class
int index = Collections.binarySearch(arrayList,"4");
System.out.println("Element found at : " + index);
}
}
Console：
Sorted ArrayList contains : [1, 2, 3, 4, 5]
Element found at : 3
