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java Programming Glossary: addallWhen to use generic methods and when to use wild-card? http://stackoverflow.com/questions/18176594/when-to-use-generic-methods-and-when-to-use-wild-card E public boolean containsAll Collection c public boolean addAll Collection extends E c We could have used generic methods here.. containsAll Collection T c public T extends E boolean addAll Collection T c Hey type variables can have bounds too This tells..
Bounded-wildcard related compiler error http://stackoverflow.com/questions/18907262/bounded-wildcard-related-compiler-error in the case of the Set returned by entrySet the add and addAll methods are unsupported anyway thanks to newacct for clarifying..
http://stackoverflow.com/questions/3120495/concurrent-set-queue map.put element Dummy.VALUE null @Override public boolean addAll Collection extends E newElements just the standard implementation..
Multiple wildcards on a generic methods makes Java compiler (and me!) very confused http://stackoverflow.com/questions/3546745/multiple-wildcards-on-a-generic-methods-makes-java-compiler-and-me-very-confu static void doSomethingIllegal List list1 List list2 list1.addAll list2 DOES NOT COMPILE The method addAll Collection extends.. List list2 list1.addAll list2 DOES NOT COMPILE The method addAll Collection extends capture#1 of in the type List capture#1.. List List lol1 List List lol2 compiles just fine lol1.addAll lol2 lol2.addAll lol1 Appendix B Nested wildcards what do they..
http://stackoverflow.com/questions/4031572/sorted-array-list-in-java Overriding List.add Note that overriding List.add or List.addAll for that matter to insert elements in a sorted fashion would.. applies for both versions of add both versions of addAll and set . All of which are optional operations according to..
Combine multiple Collections into a single logical Collection? http://stackoverflow.com/questions/4896662/combine-multiple-collections-into-a-single-logical-collection E items this.items items @Override public boolean addAll final Collection extends E c throw new UnsupportedOperationException..
http://stackoverflow.com/questions/5080612/hashset-vs-linkedhashset Math.max 2 c.size 11 .75f true boolean dummy argument addAll c And one example of a HashSet constructor that takes a boolean..
Intersection and union of ArrayLists in Java http://stackoverflow.com/questions/5283047/intersection-and-union-of-arraylists-in-java party library. Main advantage over retainAll removeAll and addAll is that these methods don't modify the original lists input.. List T list1 List T list2 Set T set new HashSet T set.addAll list1 set.addAll list2 return new ArrayList T set public T List.. List T list2 Set T set new HashSet T set.addAll list1 set.addAll list2 return new ArrayList T set public T List T intersection..
Lists with wildcards cause Generic voodoo error http://stackoverflow.com/questions/5407995/lists-with-wildcards-cause-generic-voodoo-error why the following code does not compile Neither add nor addAll works as expected. Removing the extends part makes everything.. Foo Won't compile list2.add new Foo error 1 list1.addAll list2 error 2 error 1 IntelliJ says add capture extends Foo.. add Foo The compiler says cannot find symbol symbol method addAll java.util.List capture#692 of extends Foo location interface..
Java count occurrence of each item in an array http://stackoverflow.com/questions/8098601/java-count-occurrence-of-each-item-in-an-array If you have a collection instead of an array you can use addAll to add the entire contents to the above data structure and then..
How can you authenticate using the Jersey Client against a JAAS enabled web-server? http://stackoverflow.com/questions/9676588/how-can-you-authenticate-using-the-jersey-client-against-a-jaas-enabled-web-serv if cookies null cookies new ArrayList Object A simple addAll just for illustration should probably check for duplicates and.. probably check for duplicates and expired cookies cookies.addAll response.getCookies return response String username me String..
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