fastest way to learn java

[]data = new char[6]; Public synchronized void push (char c) {if (index = = data.length) {try{this.wait (); }catch (Interruptedexception e) {}} this.notify (); Data[index] = c; index++; Public synchronized char pop () {if (index ==0) {try{this.wait (); }catch (Interruptedexception e) {}} this.notify (); index--; return Data[index]; } class Producer implements runnable{Syncstack stack; Public Producer (Syncstack s) {stack = s; public void Run () {for(int i=0; i The above is about

the Java language. From this application, we can see that the This keyword represents the name of the object. Once you have mastered this basic principle, learn about some of the next high-level applications, which are the things that come naturally.Here I just take a formal parameter as an example. In fact, if it is a local variable, it is the same reason. As in the above code, name is not a formal parame

Follow the examples to learn java multi-thread 7-object combination and release, java7- The purpose of learning thread security and synchronization is to implement reusable components or compile larger programs. Classes in java are object abstraction, so how to implement a thread security class is a technology we must know and use correctly. In the process of des

server 2014-05-17 is running.　　Open the Catalina.2014-05-17.log file to see the log information inside,　　Log information is clearly recorded in the operation of the Tomcat server, if the 8080 port is occupied and can not start properly, the exception is recorded as shown in the information, by looking at the exception information, we can know why the Tomcat server can not start properly!Summary: When the Tomcat server fails to start correctly, first check that the JAVA_HOME environment variable

will not change if it is final for the underlying data type. If the object is final, the object that the reference points to cannot change, but the object itself can be changed, which needs to be noted. To the method with final, meaning is not allowed to overwrite. Previously said that the method with coverage, there is an inline mechanism, can improve efficiency, but now this is not the focus, mainly for the purpose of prohibiting coverage. Final for the class, that is to say that the class ca

depicts the relationship between the thread and monitor, and the state transition diagram of the thread:As you can see, each monitor can be owned by only one thread at a time, and the thread is "Active thread", while the other threads are "waiting thread", waiting in the two queue "Entry set" and "Wait set" respectively. The state of the thread waiting in "Entry set" is "Waiting for monitor Entry", while the thread state waiting in "wait set" is "in Object.wait ()". Simply understood:"Entry set

Balancing, Nginx and Tomcat clustering, Use LoadRunner testing tools, optimization of performance memory tuning, code optimization and refactoring methods, and more.Of course, learning is inseparable from the process, to form their own programming thinking, when encountering problems, you can come up with solutions to deal with. Hope to share can help the needs of the pot friends. If you want to stand out from the many IT workers, you need to have advanced technology and learning to add value i

concept is the most important, after all, the program language is facing your brain thinking and computer, there is a clear thinking and open minded to learn, You will find that the program language is not so difficult to learn, the conversion platform is not so difficult to "cross." The education system takes the. Net, Java two big camp as the entry brick, this

Why did the people who were just beginning to learn programming start with Hello World? Many people do not understand this problem, even some people deliberately do not start from Hello World. I have a classmate is deliberately not from Hello World start, he is from Hello xxx (xxx is his name) began, the result is, practicing n years, his code level is so rotten, often out of the bug, affecting the line running.Programmers are an industry, and like ot

subclasses that do not support multiple inheritance in Java cannot enjoy the imperfections of members of more than one parent class.3) PolymorphismPolymorphism is another important feature of object-oriented programming. Polymorphism is a phenomenon that allows duplicate names in programs. The Java language contains method overloads and members covering two forms of polymorphism.Method overloading: In a cl

see.650) this.width=650; "Src=" http://www.itsource.cn/upload/news/2015-12-22/ 9fb1eaf6-6002-4c2e-bb53-9074027e4664.jpg "style=" line-height:24.5px;border:0px;height:587px;margin:0px;padding : 0px;width:600px; "/>Many people are confused, if the IT industry does not have a qualification threshold, then what kind of way to select the talent? This, as in many industries, the actual practical ability of individuals to investigate more is through the wri

This article explains the process of writing a HelloWorld program in Eclipse.Students who have just learned Java may write Java source code in Notepad, and finish compiling and running the Java program at the command prompt. Such a method is really enough to learn the basics of Jav