All Methods Static Methods Concrete Methods
Modifier and Type	Method	Description
`static <T,S> List<S>`	`flatMap(List<T> data, Function<T,List<S>> function)`
`static @Nullable String`	`getFileExtension(String filename)`
`static <T,S> List<S>`	`map(List<T> data, Function<T,S> function)`
`static String`	`singleQuote(String other)`	Just adds single quotes around a string.
`static String`	`toHex(byte[] data)`

singleQuote
```
public static String singleQuote(String other)
```
Just adds single quotes around a string. No escaping is performed.

public static @Nullable String getFileExtension(String filename)

public static String toHex(byte[] data)

public static <T,S> List<S> map(List<T> data,
                                      Function<T,S> function)

public static <T,S> List<S> flatMap(List<T> data,
                                          Function<T,List<S>> function)

Class Utilities