restricted visibility definition

Original linkProblemYou want to control the visibility of fields is used as constructor parameters in a Scala class.SolutionAs shown in the following examples, the visibility of constructor fields in a Scala class are controlled by whether the Fie

First, let's take a look at the requirements of the mobile phone scenario and clarify the requirements, so there will be problems targeted. Drawcils, Control in100The same screen cannot exceed2 WTriangle. Need to see the use of visionLevels, With a

Static and static keywords in C ++ Static means static. Here I want to systematically describe the role of the static keyword. Of course, it mainly describes the role of the static keyword in the development languages C and C ++. For other functions,

Static as the name implies. In this I would like to systematically tell about the role of the static keyword, of course, mainly to tell it in the development of language C and C + + role, in other aspects of the role please find additional

Java concurrent programming (2) immutability of objects and secure release objects1. immutability Another way to meet synchronization needs is to use Immutable objects ). So far, we have introduced many problems related to atomicity and visibility,

Original:Http://www.tuicool.com/articles/2YjmqySummarize:The Final variable is in concurrency, and the principle is to re-order the instruction set of the CPU by prohibiting it (reorder the

First, invarianceAnother way to meet synchronization requirements is to use immutable objects (immutable object).So far, we've covered a lot of issues related to atomicity and visibility, such as getting failure data. Loss of update operations or

First, invarianceAnother way to meet synchronization requirements is to use immutable objects (immutable object). So far, we've covered a number of issues related to atomicity and visibility, such as getting stale data, losing update operations or

First: Private, public, access to the Protected Access label. Private:Only by 1. The function in the class, 2. Its friend function is accessed. The object of the class cannot be accessed by any other access.protected:can be 1. A function in this

Summarize:1. The difference between protected and private is that the access designator limit of the protected can be accessed by the member functions of the derived class, and private cannot2. The difference between protected and publice is that