What is difference between string and vector in C++?

TLDR: string s are optimized to only contain character primitives, vector s can contain primitives or objects. The preeminent difference between vector and string is that vector can correctly contain objects, string works only on primitives.

Can we store different data types in array in C?

Yes, We can use mixed datatypes in a single array.

Can stack have different data types?

In a stack, you can store elements of the same type or different types.

What is the difference between ArrayList and vector classes?

ArrayList is non-synchronized. Vector is synchronized. ArrayList increments 50\% of its current size if element added exceeds its capacity. Vector increments 100\% of its current size if element added exceeds its capacity.

What’s the difference between a vector and an array?

A Vector is a sequential-based container whereas an array is a data structure that stores a fixed number of elements (elements should of the same type) in sequential order. Arrays have a fixed size whereas vectors have a dynamic size i.e they can resize themselves.

What is difference between vector and array in C++?

Vector is a sequential container to store elements and not index based. Array stores a fixed-size sequential collection of elements of the same type and it is index based. Vector is dynamic in nature so, size increases with insertion of elements. As array is fixed size, once initialized can’t be resized.

Is C++ string a vector?

C++ strings are different from C strings. C strings are arrays of char , not vectors (more about arrays and C strings later in the course).

Can a vector store different data types?

For example, it cannot hold reference or array types, and the underlying type (i.e. type1 or type2 ) can only be accessed by template code. The easiest way to store multiple types in the same vector is to make them subtypes of a parent class, wrapping your desired types in classes if they aren’t classes already.

What is difference between stack and Vector in Java?

Stack is basically a special case of vector. Theoretically speaking vector can grow as you wish. You can remove elements at any index in a vector. However, in case of a stack you can remove elements and insert them only at its top (hence a special case of vector).