JDK8新特性☞接口Supplier||Consumer||Compator測試

/**
 * JDK8新特性☞Supplier接口測試:該接口返回一個任意泛型的值，和Function接口不同的是該接口沒有任何參數
 * Consumer接口:表示執行在單個參數上的操作 Compartor接口：
 * 
 * @author Administrator
 *
 */
public class Test2 {
public static void main(String[] args) {
// Consumer接口測試
Consumer<Person> consumer = (p) -> System.out.println("hello" + p.getFirstName());
consumer.accept(new Person("zhang", "san"));
// Supplier接口測試
Supplier<Person> supplier = Person::new;
// 調用get方法可以創建對象
Person person = supplier.get();
System.out.println(person);
// Compartor接口測試
Comparator<Person> comparator = (p1, p2) -> p1.getFirstName().compareTo(p2.getFirstName());
Person p1 = new Person("zhan", "123");
Person p2 = new Person("haha", "1");
int compare = comparator.compare(p1, p2);
System.out.println(compare);
int compare2 = comparator.reversed().compare(p1, p2);
System.out.println(compare2);
}

}

測試接口