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fix

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This commit is contained in:
Fabio Scotto di Santolo
2018-10-10 20:11:31 +02:00
parent 08c9522264
commit 03a1aee396
1 changed files with 8 additions and 0 deletions
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8
src/com/oracle/java8/professional/CollectionTest.java
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@@ -49,4 +49,12 @@ public class CollectionTest {
System.out.println(((TreeMap<String, String>) m).firstKey()); System.out.println(((TreeMap<String, String>) m).firstKey());
System.out.println(((TreeMap<String, String>) m).lastKey()); System.out.println(((TreeMap<String, String>) m).lastKey());
} }
//public static <S, T extends S> void addAll(Collection<T> a, Collection<S> b) {}
//public static <T> void addAll(Collection<T> a, Collection<? super T> b) {}
//public static <T> void addAll(Collection<? extends T> a, Collection<T> b) {}
//public static <T> void addAll(Collection<? extends T> a, Collection<? super T> b) {}
} }