What is the output of this program?import java.util.*; public class HashSet_Example { public static void main(String args[]) { HashSet object = new HashSet(); object.add("I"); object.add("L"); object.add("U"); System.out.println(object + " " + object.size()); } }

What is the output of this program?import java.util.*; public class Ha

1.	What is the output of this program?import java.util.*; public class HashSet_Example { public static void main(String args[]) { HashSet object = new HashSet(); object.add("I"); object.add("L"); object.add("U"); System.out.println(object + " " + object.size()); } }
A.	[U, I, L]
B.	[I, L, U] 3
C.	[I, L, U]
D.	[U, I, L] 3
E.	None of these
Answer» E. None of these

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What is the output of this program?import java.util.*; public class TreeSet_Example { public static void main(String args[]) { TreeSet object = new TreeSet(); object.add("7"); object.add("0"); object.add("9"); object.add("5"); object.add("6"); System.out.println(object); } }
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What is the output of this program?import java.util.*; public class Map_Example { public static void main(String args[]) { HashMap object = new HashMap(); object.put("I", new Integer(9)); object.put("L", new Integer(12)); object.put("U", new Integer(21)); System.out.println(object.get("L")); } }
What is the output of this program?import java.util.*; public class Map_Example { public static void main(String args[]) { HashMap object = new HashMap(); object.put("D", new Integer(4)); object.put("E", new Integer(5)); object.put("F", new Integer(6)); System.out.println(object.keySet()); } }
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What is the output of this program?import java.util.*; public class HashSet_Example { public static void main(String args[]) { HashSet object = new HashSet(); object.add("I"); object.add("L"); object.add("U"); System.out.println(object + " " + object.size()); } }

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