TreeMap methods in java What is the result of JavaChamp Team Flash

Question 204 / 297: What is the result of compiling and running the following code?

import java.util.TreeMap;


public class Test {

	public static void main(String[] args) {
		TreeMap<Integer,String> map  = new TreeMap<Integer,String>();
		map.put(1, "one");
		map.put(2, "two");
		map.put(3, "three");
		map.put(4, "four");
		System.out.print(map.higherKey(2));
		System.out.print(map.ceilingKey(2));
		System.out.print(map.floorKey(1));
		System.out.print(map.lowerKey(1));
	}
}

A 3211

B 321null

C 321-1

D 231null

E 2310

<< First < Previous Next > Last >>

Explanation:

ceilingKey: returns the least key greater than or equal to the given key, or null if there is no such key.

floorKey: returns the greatest key less than or equal to the given key, or null if there is no such key.

higherKey: returns the least key strictly greater than the given key, or null if there is no such key.

lowerKey: returns the greatest key strictly less than the given key, or null if there is no such key.

Exam Home Page

https://www.jobilize.com/java-certification-questions

Oracle Certified Professional Java Programmer

Access: Public Instant Grading

JavaChamp TeamSenior Java Developer

QuizOver.com

Germany

Ask

	2 SCEA Java Architect By JavaChamp Team Start Exam
	Cultural Anthropology Assignment 2 By Richley Crapo Start Assignment
	17 AP 17 Endocrine System Essay By OpenStax Start Flashcards
	6 AP 06 Skeletal System MCQ By OpenStax Start Quiz
	27 AP 27 Reproductive System MCQ By OpenStax Start Quiz
	7 AP Key Terms 07 Axial Skeleton By OpenStax Start Key Terms
	9 AP 09 Joints Essay Quiz By OpenStax Start Flashcards
	7 Psychology MCQ 2010 Final Exam By John Gabrieli Start Exam
	7 Java Messaging Service By JavaChamp Team Start Quiz
	22 AP 22 Respiratory System MCQ By OpenStax Start Quiz
	Understanding basic music theory By OpenStax Read Online Course

Copy and paste the following HTML code into your website or blog.