Safely Handling Null with Optional

Snippet

Safely Handling Null with Optional

The Optional class is a container object used to represent the presence or absence of a value, helping to avoid NullPointerExceptions.

snippet.java
java
import java.util.Optional;
 
public class OptionalDemo {
    public static void main(String[] args) {
        Optional<String> name = Optional.ofNullable(getName());
        String result = name.map(String::toUpperCase)
                            .orElse("DEFAULT");
        System.out.println(result);
    }
 
    static String getName() { return null; }
}

Breakdown

Optional.ofNullable(getName())

Creates an Optional that may hold a null value safely.

.orElse("DEFAULT")

Provides a fallback value if the Optional is empty.

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Safely Handling Null with Optional

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