Java / Set and its implementations
Why do we need LinkedHashSet while we already have HashSet and TreeSet?
HashSet does not maintain order and returns random order every time we retrieve elements.In TreeSet elements are naturally sorted but there is increased cost associated to it.
LinkedHashSet maintains the order of elements without incurring increased cost.
LinkedHashSet is introduced in JDK 1.4 while HashSet and TreeSet are introduced in JDK 1.2.
Dogecoin! Earn free bitcoins up to $250 now by signing up.
Earn bitcoins upto $250 (free), invest in other Cryptocurrencies when you signup with blockfi. Use the referral link: Signup now and earn!
Using BlockFi, don't just buy crypto - start earning on it. Open an interest account with up to 8.6% APY, trade currencies, or borrow money without selling your assets.
Invest now!!! Get Free equity stock (US, UK only)!
Use Robinhood app to invest in stocks. It is safe and secure. Use the Referral link to claim your free stock when you sign up!.
The Robinhood app makes it easy to trade stocks, crypto and more.
More Related questions...