What is a dynamic field?

The dynamic field is a data structure used in computer programming that holds multiple computing objects as one group and can be at the pleasure of size to suit different number of objects. The group is held in a single adjacent memory block, so access to elements is efficient and fast. Dynamic fields are also called vectors or lists, depending on the computer language in which they are used. Through these names, there may be no specific list or vector of the dynamic field, as lists and vectors can be implemented differently from the fields and from each other.

C ++ contains one class of a dynamic field called a vector that is located in a group of classes called the standard template library. The fields that support this class can be accessed by iterators or indices. Its ability to change size on demand is a big advantage, but it can lure programmers into a false sense of security, because it is not as robust as it seems. The dynamic field supporting vector cannotEnsure that the CESS Acžadosti is valid. Like static fields, dynamic fields may have problems with control and corruption of memory if the program attempts to access memory that has not been assigned to them.

Java contains three different classes of dynamic fields: Vector, Arraylist and Copyonwritearraylist. Only indices are accessible elements in the field and attempt to access indices outside the field usually does not cause memory corruption problems. The Java Vector class is roughly equivalent to the C ++ vector class and is not synchronized to allow multiple fibers to access. Arrarylist and Copyonwritearralylist, on the other hand, are safe for fiber. Of the three, the copyonwritearrahlist is the most demanding class, because it completely restores the dynamic field every time a new value is written in the field.

Dynamic fields are implemented in essentially the same way regardless of the calculation of the language included, but depending on the specificThe language can be built on its peak. Like static fields, dynamic fields do not limit the type of object that can be stored inside if all the same type of object are. The programmer may never have access directly to the dynamic field; This can always be done through a class that packs the field for easy use. The correct use of these fields can help the programmer with data organization inside the code, as well as creating a comprehensible code that is suitable for easy maintenance.