public class Either<L,R>
extends Object

所有方法静态方法实例方法具体方法
修饰符和类型	方法	说明
`Optional<L>`	`getLeft()`
`Optional<R>`	`getRight()`
`boolean`	`isLeft()`
`boolean`	`isRight()`
`static <L,R> Either<L,R>`	`Left(L value)`
`static <T,R> Function<T,Either>`	`lift(CheckedFunction<T,R> function)`
`static <T,R> Function<T,Either>`	`liftWithValue(CheckedFunction<T,R> function)`
`<T> Optional<T>`	`mapLeft(Function<? super L,T> mapper)`
`<T> Optional<T>`	`mapRight(Function<? super R,T> mapper)`
`static <L,R> Either<L,R>`	`Right(R value)`
`String`	`toString()`

private Either(L left,
               R right)

public static <L,R> Either<L,R> Left(L value)

public static <L,R> Either<L,R> Right(R value)

public <T> Optional<T> mapLeft(Function<? super L,T> mapper)

public <T> Optional<T> mapRight(Function<? super R,T> mapper)

public static <T,R> Function<T,Either> lift(CheckedFunction<T,R> function)

public static <T,R> Function<T,Either> liftWithValue(CheckedFunction<T,R> function)

字段
修饰符和类型	字段	说明
`private L`	`left`
`private R`	`right`

类 Either<L,​R>

类 Either<L,R>