Java – How to get size of HashSet

Size of HashSet can be find by size() method. In size method, it will return value in integer.

Example of finding size in HashSet in Java

HashSet<String> hs=new HashSet<String>();

hs.add("b");
hs.add("a");
hs.add("c");
hs.add("d");
hs.add("d");

int sizeOfHashSet=hs.size();

System.out.println("Size of HashSet :"+sizeOfHashSet);

Output

Size of HashSet :4

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