What is array and union?

Union. An array is the collection of data items which will have the same name. The union is a collection of heterogeneous data types. Each element has a specific memory.

What is the difference between structure union and enumeration?

That is the main difference between structure union and enum in C. In programming, a variable can store a value of a single data type. Structure and union are two methods to store multiple variables of different types as a single variable. On the other hand, enum is a data type to declare a set of named constants.

What are the main differences between array and collection?

Difference between Arrays and Collection in Java

Arrays	Collection
Arrays are fixed in size that is once we create an array we can not increased or decreased based on our requirement.	Collection are growable in nature that is based on our requirement. We can increase or decrease of size.

What is the difference between Array and List?

Array: An array is a vector containing homogeneous elements i.e. belonging to the same data type….Difference between List and Array in Python.

List	Array
Can consist of elements belonging to different data types	Only consists of elements belonging to the same data type

What is the difference between Array and variable?

1. Array holds multiple values, whereas an ordinary variable hold a single value. when the variable is a simple scalar variable such as an int. It is not generally right to distinguish between a variable and an array..

What is the difference between union and structure in C++?

» Both are container data types and can contain objects of any type, including other structure and unions or Array as their Members….Difference between Structure and Union in C/C++:

Structure	Union
All data Members in a Structure are active at time.	Only one data Member is active at a time.

What is the important difference between structure and union Mcq?

Difference between Structure and Union

Struct	Union
It occupies space for each of the inner parameters.	Occupies space equivalent to the parameter with the highest size.
All members store some value at any point in time.	Exactly one member stores a value at any particular instance.

What is the difference between an array and a union?

Collection of elements of heterogenous data types. Arrays can be one or two dimensional. Unions do not have type. Each element is allocated a specific memory location. The elements share the memory location which has size equivalent to the size of the largest size element of the union.

What is the difference between Union and structure in Java?

They are both container data types, and they are capable of holding any data type. Although there is one very major difference between them. The union has the same memory location for all of its members, while the Structure possesses separate ones for the same purpose. Let us understand more differences between them.

What is the difference between an array and a struct?

In an array all the elements have the same size and type, so you can’t use one for an int and the other one as a double value, and so on. In struct s, every element can have a different size or type. You can use one as an int and the others for any data type you can use for a regular variable, you can also have arrays of structures.

What is the difference between a struct and a union?

The struct statement defines a new data type, with more than or equal to one member. The format of the struct statement is as follows: A union is a special data type available in C that allows storing different data types in the same memory location.