What Will Be The Output Of The Following Java Programp Pre #719

What will be the output of the following Java program?</p> <pre><code class="language-java" line="1"> import java.util.*; class Maps { public static void main(String args[]) { HashMap obj = new HashMap(); obj.put("A", new Integer(1)); obj.put("B", new Integer(2)); obj.put("C", new Integer(3)); System.out.println(obj.keySet()); } }</code></pre>

This multiple choice question (MCQ) is related to the book/course gs gs128 Java. It can also be found in gs gs128 Java Util Collections Framework - Java.util - Maps - Quiz No.1.

 import java.util.*; class Maps { public static void main(String args[]) { HashMap obj = new HashMap(); obj.put("A", new Integer(1)); obj.put("B", new Integer(2)); obj.put("C", new Integer(3)); System.out.println(obj.keySet()); } }