23 lines
947 B
Markdown
23 lines
947 B
Markdown
## 4. - 函数式编程
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### 4.1. PredicateTools
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`PredicateTools` 用于 `Predicate` 的相关操作。
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### 4.2. Functional interfaces
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补充可能用得上的函数式接口：
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| Group | FunctionalInterface | method |
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| --- | --- | --- |
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| UnaryOperator | **BoolUnaryOperator** | boolean applyAsBool (boolean) |
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| UnaryOperator | **CharUnaryOperator** | char applyAsChar(char) |
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| Throwing | **Executable** | void execute() throws E |
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| Throwing | **ThrowingConsumer** | void accept(T) throws E |
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| Throwing | **ThrowingFunction** | R apply(T) throws E |
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| Throwing | **ThrowingPredicate** | boolean test(T) throws E |
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| Throwing | **ThrowingSupplier** | T get() throws E |
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| Optional | **OptionalSupplier** | Optional<T> get() throws E |
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| Optional | **ToOptionalBiFunction** | Optional<R> apply(T,U) |
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| Optional | **ToOptionalFunction** | Optional<R> apply(T) |
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