import java.util.ArrayList;
import java.util.Collections;
import java.util.List;

public class BinarySearchExample {
    public static void main(String args[]){
        List<String> dataList = new ArrayList<String>();
            dataList.add("Ball");
            dataList.add("Apple");
            dataList.add("Dog");
            dataList.add("Cat");
        
        //Before doing binary search list should be sorted..
        Collections.sort(dataList);
        
        //Data list Object sorted..
        System.out.println(dataList);
        
        //Binarysearch method to search a string from list of strings
        System.out.println(Collections.binarySearch(dataList, "Ball"));
        System.out.println(Collections.binarySearch(dataList, "Eagle"));
        System.out.println(Collections.binarySearch(dataList, "Apple"));
    }
}