HasSet in java code example

Example 1: hashset contains java

HashSet<Integer> set = new HashSet<Integer>();      
set.contains(110)//public boolean contains(Object o)

Example 2: java hashset

HashSet<String> hset = new HashSet<String>();
// Adding elements to the HashSet
hset.add("Apple");
hset.add("Mango");

Example 3: HashSet h = new HashSet();

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