package com.lfsun.java11study.stream;
import java.util.List;
import java.util.stream.Collectors;
import java.util.stream.Stream;
public class StreamAPIImprovementsExample {
public static void main(String[] args) {
List<String> names = List.of("Alice", "Bob", "Charlie", "David", "Ella", "Frank");
// 使用dropWhile方法去掉开头满足条件的元素
List<String> namesAfterDropWhile = names.stream()
.dropWhile(name -> name.length() < 5)
.collect(Collectors.toList());
System.out.println("After dropWhile: " + namesAfterDropWhile);
// 使用takeWhile方法获取开头满足条件的元素,直到遇到不满足条件的元素
List<String> namesAfterTakeWhile = names.stream()
.takeWhile(name -> name.length() < 6)
.collect(Collectors.toList());
System.out.println("After takeWhile: " + namesAfterTakeWhile);
// 使用新的Stream.ofNullable方法创建一个流,避免空值情况
String nullableName = "John";
Stream.ofNullable(nullableName)
.forEach(name -> System.out.println("Nullable Name: " + name));
}
}
Java 11 - 增强的 Stream API
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转载自blog.csdn.net/qq_43116031/article/details/131755238
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