但你需要了解一个java8的Predicate。通过Predicate可以让你的代码更加的简洁。学习下Predicate吧。 Predicate是一个函数接口。它包含了一个接口方法和三个默认方法以及一个静态方法。 Predicate表示断定和假设的意思。 test test接口就是为了让你实现判断的效果。最原始的就是去实现这个接口,然后写我们的判断逻辑,如下: ...
Java.Util.Functions Assembly: Mono.Android.dll Evaluates this predicate on the given argument. C# [Android.Runtime.Register("test","(Ljava/lang/Object;)Z","GetTest_Ljava_lang_Object_Handler:Java.Util.Functions.IPredicateInvoker, Mono.Android, Version=0.0.0.0, Culture=neutral, PublicKeyToken=nul...
public class PredicateTest { public static void main(String[] args) { List<Integer> list = Arrays.asList(1, 2, 3, 4, 5, 6, 7, 8, 9, 10); PredicateTest predicateTest = new PredicateTest(); //输出大于5的数字 List<Integer> result = predicateTest.conditionFilter(list, integer -> ...
Method Details test boolean test(T t) Evaluates this predicate on the given argument. Parameters: t - the input argument Returns: true if the input argument matches the predicate, otherwise false and default Predicate<T> and(Predicate<? super T> other) Returns a composed predicate that ...
public static void testMethod(Predicate<String> predicate){ boolean result = predicate.test("HelloWorld"); System.out.println("字符串很长么? " + result); } } 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. ...
public boolean test(Integer v) { Integer five = 5; return v > five; } } This is a Java class implementing thePredicate<Integer>interface. Itstestmethod returns true for values bigger than five. List<Integer> nums = List.of(2, 3, 1, 5, 6, 7, 8, 9, 12); ...
深入学习java源码之Consumer.andThen()与Predicate.test() Consumer消费数据函数式接口 这个方法是用来消费数据的,如何消费,消费规则自己定义. import java.util.function.Consumer; /** * 使用Consumer函数式接口实现格式化输出 */ public class ConsumerDemo2 { ...
packagepredicateExample;importjava.util.ArrayList;importjava.util.Arrays;importjava.util.List;importstaticpredicateExample.EmployeePredicates.*;publicclassTestEmployeePredicates{publicstaticvoidmain(String[] args){Employeee1=newEmployee(1,23,"M","Rick","Beethovan");Employeee2=newEmployee(2,13,"F","Mart...
import java.util.function.Function;publicclassTest2 {//函数型接口:Function<R, T>publicstaticvoidmain(String[] args) { String newStr= strHandler("abc",(str)->str.toUpperCase()); System.out.println(newStr); newStr= strHandler("abc",(str)->str.trim()); ...
Method Details test boolean test(long value) Evaluates this predicate on the given argument. Parameters: value - the input argument Returns: true if the input argument matches the predicate, otherwise false and default LongPredicate and(LongPredicate other) Returns a composed predicate that ...