pragmatic programmer book

Skills: "Programmer Interview Treasure" This book has Java, C + + and other versions of the main introduction of the written interview often test questions, some of the knowledge point is really very fine, very worth watching. Data structures and algorithms: "The beauty of programming" inside the programming problem often test, some may be more difficult. "Sword refers to offer" This is strongly recommende

use R2 in addition to R1, ... So go on until you can divide it evenly. The last non-0 divisor is (A, b).Time complexity O (logn).String s = "a" + "B" + "C" + "D" + "E"; how many objects are created?1 of them. "A" is a constant and only the literal value is stored.What are the output results of the following programs?String str = "ABCDEFGH";System.out.println (str.dubstring (3,5));Answer: "DE"What's the difference between StringBuffer and StringBuilder?The newly introduced StringBuilder class is

Summary of JAVA programmer interview book-let's talk about my understanding September 7, 2014 I started reading this book today and ended the systematic training at the intermediate level of the algorithm in the original plan. I think let's take a look at the interview questions first. Let's drop this book A first. I h

1. Gone are the days ofthe "lifer" who wocould join a big companyAnd settle in for a fullcareer. This sort of behavior used to beSign of dedication. Now it's a liability. If you're 've worked in only onePlace and seen one set of systems, secure (smart) managers wocould seeThat as a strike against you when making ahiring demo.2. Legendary jazz guitarist Pat Metheny has a stock piece of adviceYoung musicians, which is "Always be the worst guy in every bandYou're in ."3. Learn a new programminglang

back to me, I am transparent, I can only play jokes with other little girl."Elder brother, you are very bad, just so many wine go down, do not take ventilation." ”"Hey, Big Brother walk the river, rely on is a good liquor, talk about loyalty, brothers more, out of the outside, steel plate brick fruit knife One can not less, just that several yellow hair, I blew my breath on the fly." ”"Why didn't you blow your breath and blow them up, drinking more trouble?" ”"As a knife-guest, the knife out of

:Xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx6. Coding and Unit TestingJob Description:1, according to the algorithm design coding, self-responsible code for unit testing2, in principle, the unit test itself after the commit code to the Svn,commit log content, please directly copy the task or the title of the bug, for example:Task 098:xxxxxxxxxxxxxxxxxxxxxxxbug123:xxxxxxxxxxxxxxxxxxxxxxx7. Integration TestingJob Description:1, responsible for handling the assigned to their own bugs2, the bug is completed an

be a deliberate consideration for Java designers. As a program designer, when an expression of J=f (j) is present, it must be the final value of the entire expression of F (j), rather than the value of J being increased by various self-decrement in the process (if so, that f (*) is meaningless, rather than simply preserving the various self-increment of J and throwing away other subtraction expressions), So the value of F (j) cannot be covered by the various additions and deletions of J, so the

is random.What's the difference between HashMap and Hashtable?Hastmap is an interface that is a sub-interface of the map interface, an object that maps keys to values, where the keys and values are objects and cannot contain duplicate keys, but can contain duplicate values. HashMap allows null key and null value, while Hashtable is not allowed.HashMap is a lightweight implementation of Hashtable (non-thread-safe implementation).Constructors are not overridden in Java, and constructors for subcl