java8 : java8 api 에 추가된 기본 메소드들

java8to11/src/java8interface/App.java

@@ -1,13 +1,55 @@
 package java8interface;
 
+import java.util.ArrayList;
+import java.util.Comparator;
+import java.util.List;
+import java.util.Spliterator;
+
+/**
+ * 자바8 api 에 추가된 기본 메소드들
+ *
+ * Iterable 의 forEach(), spliterator()
+ * Collection 의 stream(), parallelStream(), removeIf(Predicate), spliterator()
+ * Comparator 의 reversed(), thenComparing(), static reverseOrder() / naturalOrder()
+ *              static nullsFirst() / nullsLast(), static comparing()
+ */
+
 public class App {
 
     public static void main(String[] args) {
-        Foo foo = new Default("kim");
+        List<String> names = new ArrayList<>();
+        names.add("kim");
+        names.add("lee");
+        names.add("park");
+        names.add("choi");
 
-        foo.printName();
-        foo.printNameUpperCase();
+        
 
-        Foo.printHello();
+//        Comparator<String> compareToIgnoreCase = String::compareToIgnoreCase;
+//        names.sort(compareToIgnoreCase.reversed());
+//        names.forEach(System.out::println);
+
+//        names.removeIf(s -> s.startsWith("k"));
+//        names.forEach(System.out::println);
+
+//        long k = names.stream().map(String::toUpperCase)
+//                .filter(s -> s.startsWith("K"))
+//                .count();
+//        System.out.println(k);
+
+//        names.forEach(System.out::println);
+//        Spliterator<String> spliterator = names.spliterator();
+//        Spliterator<String> spliterator1 = spliterator.trySplit();
+//
+//        while (spliterator.tryAdvance(System.out::println));
+//        System.out.println("==============================");
+//        while (spliterator1.tryAdvance(System.out::println));
+
+//        Foo foo = new Default("kim");
+//
+//        foo.printName();
+//        foo.printNameUpperCase();
+//
+//        Foo.printHello();
     }
 }