ps4 super

By defining a method or member with static, it provides some convenience for our programming, which in some way can be said to be similar to global and global variables in the C language. But it's not that you can use it anywhere, and if you do, you need to think about whether you're programming with object-oriented thinking and whether your program is object-oriented.Okay, now we're going to talk about the meaning and usage of the two keywords Thissuper.In Java, this usually refers to the curre

Background Java given a specific type parameter a after the generic list, with the given another specific type parameter x of the generic list Super or extends can define a large class of generics as the parent class for generics that give specific type parameters. Super or extends defines a bounded generic that overrides the hierarchical relationship between the decision and the specific p

Transferred from: http://blog.csdn.net/yihuei123/archive/2007/06/04/1637893.aspxBy defining a method or member with static, it provides some convenience for our programming, which in some way can be said to be similar to global and global variables in the C language. But it's not that you can use it anywhere, and if you do, you need to think about whether you're programming with object-oriented thinking and whether your program is object-oriented.Okay, now we're going to talk about the meaning a

Super in 2012 gradually by the media vigorously propaganda, the current super is not what fresh products, including the front computer software and hardware application network also for everyone recommended a lot of the latest release of the super computer and related super This introduction article, for a lot of frien

Introduction-Recent database system principles of the textbook, there are some small knowledge point to see really let people silly, even if the psychology of me, do not know what it said, yesterday group meeting discussion, everyone's understanding also have different, the primary key, candidate key, super key, foreign key these seemingly very small concept, discussed for a whole half hour. Let me tell you about my understanding. --------------------

The definition of an object method in Python is bizarre, and the first parameter is generally named self (equivalent to this in other languages), which is used to pass the object itself, and it is not explicitly passed when called, and the system is automatically passed. Today we introduce the protagonist is super (), in the inheritance of the class super () is very common, it solves the subclass calls the

The subclass accesses the parent class with the same name, and does not want to refer directly to the parent class's name, since it might be time to modify it, so the data is still only a good copy. In fact, there are better reasons not to refer directly to the name of the parent class, see Python's Super () considered super! | Deep thoughts by Raymond Hettinger. This time the

In Java, this usually refers to the current object, andSuper refers to the parent class. When you want to refer to something of the current object, such as a method of the current object, or a member of the current object, you can use this for this purpose, and, of course, another use of this is to invoke another constructor of the current object, which will be discussed immediately. If you want to refer to something in the parent class, then the non-super