Represents a function that accepts two arguments and produces a result.
This is the two-arity specialization of {@link Function}.
<p>This is a <a href="package-summary.html">functional interface</a>
whose functional method is {@link #apply(Object, Object)}.
@param <T> the type of the first argument to the function
@param <U> the type of the second argument to the function
@param <R> the type of the result of the function
Represents a function that accepts two arguments and produces a result. This is the two-arity specialization of {@link Function}.
<p>This is a <a href="package-summary.html">functional interface</a> whose functional method is {@link #apply(Object, Object)}.
@param <T> the type of the first argument to the function @param <U> the type of the second argument to the function @param <R> the type of the result of the function
@see Function