1z0-829 Exam - Question 24

Question

Given the code fragment:What is the result?

Examice · Accepted Answer

Initially, when using `Collections.binarySearch(lst, "e3")` on the unsorted list `[

james2033 · Answer

package q24;

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

public class Q24 {

public static void main(String[] args) {
        List lst = new ArrayList();
        lst.add("e1");
        lst.add("e3");
        lst.add("e2");

int x1 = Collections.binarySearch(lst, "e3");
        System.out.println(x1);
        Collections.sort(lst);
        int x2 = Collections.binarySearch(lst, "e3");
        System.out.println(x2);

Collections.reverse(lst);
        int x3 = Collections.binarySearch(lst, "e3");
        System.out.println(x3);
    }

}

// Result:
// 1
// 2
// -4

xplorerpj · Answer

A is correct answer

1z0-829 Exam - Question 24

Discussion