java8 中的常用函数式接口
| 函数式接口 | 表达式 | 拓展 | 备注 |
|---|---|---|---|
| Predicate | T -> boolean | DoublePredicate IntPredicate LongPredicate |
谓词 |
| Consumer | T -> void | DoubleConsumer IntConsumer LongConsumer |
消费 |
| Function<T, R> | T -> R | DoubleFunction<R> DoubleToIntFunction DoubleToLongFunction IntFunction<R> IntToDoubleFunction IntToLongFunction LongFunction<R> LongToDoubleFunction LongToIntFunction ToDoubleFunction<T> ToIntFunction<T> ToLongFunction<T> |
类型转换 |
| Supplier | () -> T | BooleanSupplier DoubleSupplier IntSupplier LongSupplier |
生产 |
| UnaryOperator | T -> T | IntUnaryOperator LongUnaryOperator |
一元运算符 |
| BinaryOperator | (T, T) -> T | DoubleBinaryOperator IntBinaryOperator LongBinaryOperator |
二元运算符 |
| BiPredicate<T, U> | (T, U) -> boolean | 扩展Predicate | |
| BiConsumer<T, U> | (T, U) -> void | ObjDoubleConsumer<T> ObjIntConsumer<T> ObjLongConsumer<T> |
扩展Consumer |
| BiFunction<T, U, R> | (T, U) -> R | ToDoubleBiFunction<T, U> ToIntBiFunction<T, U> ToLongBiFunction<T, U> |
扩展Function |