By Ka Iok Tong
If you want to benefit the recent gains in Java SE 5.0 and move the solar qualified Java Programmer improve examination (CX-310-056), then this e-book is for you. It covers the entire Java SE 5.0 new positive factors required within the examination. you don't want to examine the present beneficial properties that you simply already be aware of. 117 overview questions and ridicule examination questions are included.
It comprises the next chapters: Autoboxing, Generics, For-each loop, Manipulating Collections, Variable Arity Parameters, Enum, Static Imports, Covariant go back varieties, Java I/O, Formatting and Parsing, getting ready for the examination.
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B. It will print "N". c. It will throw a ClassCastException at line 3. d. It will not compile. Generics 45 Answers to the mock exam 1. b. 2. d. The iterator is a Iterator
If it returned 2 to you, you couldn't tell whether the element was found at index 2 or was not found but should be inserted at index 2. So it returns -2 to you. However, there is still a minor problem. If you are searching for "a", the correct index to insert "a" should be 0. If it returns -0, then it is just 0. Then you can't tell whether it is found at index 0 or not found and should be inserted at index 0. So, after negating the index (2=>-2, 0=>-0), it will always minus 1 from it (2=>-3, 0=>-1) so that the return values for all not-found cases will be strictly negative.
Moving elements from a List of Rect into a Set of Object or a List of Shape or a List of Rect). a. static void move(Collection