* This is a functional interface * whose functional method is {@link #accept(Object)}. *这是一个函数式接口,方法是accept * @param <T> the type of the input to the operation * * @since 1.8 */ @FunctionalInterface publicinterfaceConsumer<T> 对于之前的例子,list.forEach(i -> System.out....
*/publicstaticvoidmethod(String name,Consumer<String>con){con.accept(name);}publicstaticvoidmain(String[]args){//调用method方法,传递字符串姓名,方法的另一个参数是Consumer接口,是一个函数式接口,所以可以传递Lambda表达式method("zjq666",(String name)->{//对传递的字符串进行消费//消费方式:直接输出字符...
print square : 4 first x : 1 second x : 1 Exception in thread "main" java.lang.NullPointerException: throw exception test at jdk8.ConsumerTest.lambda$testAndThen$2(ConsumerTest.java:27) at java.util.function.Consumer.lambda$andThen$0(Consumer.java:65) at java.util.function.Consumer.lambda...
stringOne -> stringOne.equals("zhangsan"), stringTwo -> stringTwo.length() >5);System.out.println("测试and方法打印结果:"+b);/***@paramstringOne 待判断的字符串*@parampredicateOne 断定表达式1*@parampredicateTwo 断定表达式2*@return是否满足两个条件*/publicbooleantestAndMethod(String stringOne,...
}publicstaticvoidmain(String[] args){//调用method方法,传递字符串姓名,方法的另一个参数是Consumer接口,是一个函数式接口,所以可以传递Lambda表达式method("zjq666",(String name)->{//对传递的字符串进行消费//消费方式:直接输出字符串//System.out.println(name);//消费方式:把字符串进行反转输出StringreName...
Java8新特性：2-消费者（Consumer）接口 Java8新特性：2-消费者（Consumer）接⼝ (原)在上⼀篇，⽤到过这样⼀个⽅法：list.forEach(new Consumer<Integer>() { @Override public void accept(Integer t) { System.out.println(t);} });这⾥重点看List的foreach⽅法;/* * Copyright (c) ...
rel="external nofollow" >functional interface * whose functional method is {@link #get()}. * * @param <T> the type of results supplied by this supplier * * @since 1.8 */ @FunctionalInterface public interface Supplier<T> { /** * Gets a result. * * @return a result */ T get()...
* whose functional method is {@link#get()}. * *@param<T> the type of results supplied by this supplier * *@since1.8 */@FunctionalInterfacepublicinterfaceSupplier<T> {/** * Gets a result. * *@returna result */Tget(); } AI代码助手复制代码 ...
* whose functional method is {@link #get()}.* * @param <T> the type of results supplied by this supplier * * @since 1.8 */ @FunctionalInterface public interface Supplier<T> { /** * Gets a result.* * @return a result */ T get();} supplier接⼝只有⼀个抽象⽅法get(),...
java.util.function Interface Consumer<T> Type Parameters: T- the type of the input to the operation All Known Subinterfaces: Stream.Builder<T> Functional Interface: This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference. ...