🚀 Unleashing the Power of Optional in Java 8! 🌟
"Eliminate Nulls, Embrace Optionals!

🚀 Unleashing the Power of Optional in Java 8! 🌟

Have you ever thought about how null values were handled in Java 8? Well, here is optional class which was a game changer in Java programming world! 🚀

🔍 What is Optional?

Optional is a final class in java 8

to handle the values as "available" or "not available" instead of checking null values..

🎯 Purpose and Need:

It helps solve the notorious "NullPointerException" as it provides for an easy way to indicate that a value could be missing. This promotes explicit handling of missing values by developers, enhancing code resilience.

🛠️ Important Method:

  • ifPresent
  • isPresent
  • get()
  • orElse()
  • orElseGet()
  • orElseThrow()
  • filter()
  • map()
  • flatMap()
  • Optional.empty()
  • Optional.of()
  • Optional.ofNullable()

🎯 Frequently asked interview question:

  • Difference between Map and FlatMap?
  • What are different ways to create optional object?
  • What are different methods of Optional class?


#Java8 #Optional #CodeElegance💻✨ #JavaDevelopment


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