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Optional.ofNullable is generally more usable in conjucture with .orElse() #19

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Optional.ofNullable is generally more usable in conjucture with .orElse() #19

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6 changes: 5 additions & 1 deletion README.md
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Expand Up @@ -344,13 +344,17 @@ Optionals are not functional interfaces, but nifty utilities to prevent `NullPoi
Optional is a simple container for a value which may be null or non-null. Think of a method which may return a non-null result but sometimes return nothing. Instead of returning `null` you return an `Optional` in Java 8.

```java
Optional<String> optional = Optional.of("bam");
Optional<String> optional = Optional.ofNullable("bam");

optional.isPresent(); // true
optional.get(); // "bam"
optional.orElse("fallback"); // "bam"

optional.ifPresent((s) -> System.out.println(s.charAt(0))); // "b"

List<String> initials = null; // uninitilized
initials = Optional.ofNullable(initials).orElse(Arrays.asList("abc", "def")); // ["abc", "def"]

```

## Streams
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