object lock

Java Basics 1. What are the features of object orientation? 1. Abstraction: Abstraction is to ignore those aspects irrelevant to the current target in a topic, so that you can pay more attention to the aspects related to the current target.

Java Basics 1. What are the features of object orientation? 1. Abstraction: Abstraction is to ignore those aspects irrelevant to the current target in a topic, so that you can pay more attention to the aspects related to the current target.

Java interview questions, java questions1. simple principles and applications of the Exception Handling Mechanism in C ++ or Java. When a JAVA program violates the JAVA Semantic Rules, the JAVA Virtual Machine will indicate an error as an exception.

Understanding of JAVA multi-thread concurrent programming and java multi-thread concurrent programming Understanding of JAVA multi-thread concurrent programming Java multi-thread programming focuses on concurrent access to a single resource. This

Understand the synchronized keyword in java:-------------------------------------------------------------- In fact, more than 90% of my basic java knowledge comes from Thinking in Java. For the synchronized keyword,At that time, I just browsed it. I

JAVA thread conceptsUnlike most other computer languages, Java supports multithreaded programming ).A multi-threaded program contains two or more concurrent operations. Every such part of the program is called a thread, and each thread has an

Although the C language is used in the design of RTT, the object-oriented approach is used. All threads and event devices are inherited from objects and managed in a linked list .. Object Control Block/*** base structure of kernel object */struct

Keyword of the Java language, when it is used to modify a method orCodeAt the same time, only one thread can execute the code at most. 1. When two concurrent threads access the synchronized (this) synchronization code block of the same object,

Expression indicates the object you want to trace. It is usually an object reference. Generally, if you want to protect an instance of a class, you can use this; if you want to protect a static variable (such as mutual exclusion) Code In a static

1. Does the array have the length () method? Does string have the length () method? A: The array does not have the length () method. It has the Length attribute. String has the length () method. 2. String S = new string ("XYZ"); how many string

Java interview knowledge points (most of them have been seen, but they are still very useful ~~ Turn to stay) It's a classic thing, and it's everywhere. First, write the original article:First, let's talk about the differences between final,

1. Abstraction: Abstraction ignores aspects irrelevant to the current target in a topic, so that you can pay more attention to the aspects related to the current target. Abstraction is not intended to understand all the problems, but to select a

Thinking... Reference: http://hanhongke123.blog.163.com/blog/static/62223494201081392124586/ No. One Synchronized Method of an object can only be accessed by one thread.   Java synchronized usage Summary 1. When synchronized is used as a function

Java Concurrency: await/wait with the Sleep , yield the difference betweenwhether to release the lock: called Sleep and the yield does not release the lock acquired by the current thread, but calls the await/wait , it releases the lock it acquires

201521123045 11th Week Study Summary1. Summary of this week's study2. Written work2. Written workQ1.1. Mutually exclusive access and synchronous accessComplete episode 4-4 (mutually exclusive access) with 4-5 (synchronous

Summary of core technology of multithreading programming1.Java Multithreading Basic Skills1.1 Concepts of processes and threads:A process is a separate program, and a thread is a subtask that runs independently in a process.1.2 Using multithreading1.

Java Multi-threading and concurrency---Learning summary (very detailed)1. Computer SystemsThe cache is used as a buffer between the memory and the processor, the data needed for the operation is copied into the cache, the computation can be made

Chapter III Inter-threading communication32, in addition to the wait/notification mechanism, the use of sleep and while (true) can also achieve the communication between multiple threads, but there is a disadvantage is that the thread constantly

On the "concurrent and multi-threaded-talk interview often less use of volatile" is mainly about volatile visibility, atomicity and other characteristics, but also through some examples of simple and synchronized contrast.Compared to volatile, in

Wait ()/notify ()/notifyall () in the 1.Object classWait (): leave the current thread in the waiting state and release the held object lock until another thread calls this object's thread notify ()/notifyall () method, and the current thread is