adspace
Answer Posted / Amarpali Sharma
Optional<T> is a container class in Java 8 that can hold either a value of type T or null. It's designed to handle the cases where methods may return null, promoting null-safe programming practices.nnOptional provides methods like isPresent(), get(), ifPresent(), orElse() and orElseGet() to manage the presence of a value and its operations.
| Is This Answer Correct ? | 0 Yes | 0 No |
Post New Answer View All Answers
explain different ways of using thread? : Java thread
Write a java program to find the route that connects between Red and Green Cells. General Rules for traversal 1. You can traverse from one cell to another vertically, horizontally or diagonally. 2. You cannot traverse through Black cells. 3. There should be only one Red and Green cell and at least one of each should be present. Otherwise the array is invalid. 4. You cannot revisit a cell that you have already traversed. 5. The maze need not be in the same as given in the above example
What is parsing in java?
Realized?
What is the difference between equals() and == in java?
Is minecraft 1.15 out?
What is a classloader in java?
What is a constructor overloading in java?
Differentiate between static and non-static methods in java.
How to sort array in descending order in java?
What is the difference between break and continue statements?
What is java string pool?
Explain public static void main(string args[]) in java.
What are the differences between heap and stack memory in java?
What do you mean by an interface in java?