lpic 1 study guide

the class name of class-friendly member variables and class-friendly methods"; "" protected is "any class with a similar package, you can access class A class protected class variables and protected class method". "Friendly" is a bit bigger than protected permission. Problems in code debugging and the resolution process Issue 1: When it is necessary to compile three source files simultaneously, for example, Example4_8.java Circle.java C

resources interrupt()The thread used to "wake up" The method was called sleep Thread synchronizationUsing the synchronized -Modified method, you follow the synchronization mechanism: When a thread a uses the Synchronized method, other threads must wait until thread A is finished using the method.Reconciling threads for synchronization wait()Method can be executed in the thread break, temporarily let the CPU use wait()Method must be notifyAll() awakened by method wait()

content Collection Overview-Stack Chain Structure--stack Other (sentiment, thinking, etc., optional)This national day has been happy, in addition to the first day of the national day to enjoy seven hours of experimental programming and the countdown to three days of PP programming, as well as my favorite blog--in the process of writing PP only to find that they have a lot of knowledge points do not know, hope to gradually have that kind of handy feeling

(1) Static importThe import technology is actually in Java for the convenience of using other people to write good classes.Import java.lang.*| class nameOnly classes can be imported in the original Guide package statement. If you need to import some static methods or properties then there is nothing to do.Example 1: Find the area of a circle of any radius?Find th

As the interaction between PC-end WEB and embedded devices in the project involves JSP program development, the time span for learning JSP development is tentatively set to one month (). On the National Day holiday, I went to the bookstore to buy a guide related to JSP development. I really cannot buy more books in the bookstore. I am so poor when I buy more books. After I bought it, I scanned the QR code on my mobile phone. For a book with the origin

time, metadata, by invoking the stat and FSTAT functions. #include The stat function takes a file name as input, and the ftast as input with a filename descriptor. Learning progress Bar Code lines (new/cumulative) Blog volume (new/cumulative) Learning Time (new/cumulative) important growth Goal 5000 rows 30 Articles 400 hours Seventh Week 1300/1750 11/11 140/140

data. The basic layer of the model is the network interface layer. Sends and receives data frames. frames are independent network information transmission units. The Network Interface Layer places frames on the Internet or retrieves frames from the Internet. Network Interface TechnologyThe IP uses the network device interface specification (NDIS) to submit frames to the network interface layer. IP addresses Support WAN and domestic network interface technologies.Serial Line ProtocolTCP/IPG gene

the same as the previous version will cause the browser to be unable to recognize the problem of loading the cache files. This way we need to automatically generate filenames with hash values to block the cache. See:https://segmentfault.com/a/1190000006178770#articleheader7 (4) use V-IF to reduce unnecessary component loading : The v-if directive is useful in that it allows components that are temporarily unwanted in our project to be rendered without rendering, and so on when needed, suc

Boost C + + Libraries were successfully built!Method Two:Execute the command directly:$apt-cache Search boost: Searching for all boost libraries$sudo apt-get Install Libboost-all-dev: Installing the appropriate libraries2.3 Test Code: Convert a string to an integer using the Boost library 1 #include 2 # Include3 int main () 4 { 5 int a = Boost::lexical_castint > ( 123456 " 6 std::cout STD::ENDL; 7 return 0 8 } 3. A data Interchange

Starting today, I will write my study notes, limited to front-end, three basic programming, HTML CSS JavaScript; I will not write about how html is formed and how it will develop in the future. I only recommend the book "The third edition of the HTML authoritative guide". I can find answers to the above questions. The entire HTML page consists of four parts: doctype HTML head body. The following are