Function andThen example
Description
Function andThen returns a composed function that first applies this function to its input, and then applies the after function to the result.
Syntax
andThen
has the following syntax.
default <V> Function<T,V> andThen(Function<? super R,? extends V> after)
Example
The following example shows how to use andThen
.
import java.util.function.Function;
//ww w.j a v a 2 s .c o m
public class Main {
public static void main(String[] args) {
Function<Integer,String> converter = (i)-> Integer.toString(i);
Function<String, Integer> reverse = (s)-> Integer.parseInt(s);
System.out.println(converter.apply(3).length());
System.out.println(converter.andThen(reverse).apply(30).byteValue());
}
}
The code above generates the following result.
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