Code:
SizeOfHashSet.java
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package net.roseindia;import java.util.HashSet;public class SizeOfHashSet { public static void main(String[] arg) {HashSet obHashSet = new HashSet();obHashSet.add( new Integer(1));obHashSet.add( new Integer(2));obHashSet.add( new Integer(3));obHashSet.add( new Integer(4));System. out.println("All Elements in HashSet : " + obHashSet);System. out.println("Size of HashSet : " + obHashSet.size());} } |
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All Elements in HashSet : [1, 2, 3, 4] Size of HashSet : 4 |