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Optional Java
8
What Is an Optional Class
Java.util.optional
Optional Class Java
1.8
How to Use
Optional in Java
SQL Optional
Parameter
Java 8 Optional
Interface
Optional Class in Java
8
Optional
Nullable Map Example Java
Optional
Use Cases in Java
What Is Constructor
in Java
javaguides.net
Java Optional Class Methods with Examples
Java introduced a new class Optional in JDK 8. It is a public final class and used to deal with NullPointerException in Java application. You must import java.util package to use this class. It provides methods which are used to check the presence of a value for the particular variable.
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