Question: Which STL class is best fit for implementing a phonebook?

What is the difference between a public and a private class member Linkedin?

Public members can be accessed by any function. Private members can be accessed only by the same class’s member functions and the friends of the class.

What’s the storage occupied by u1?

union { unit16_t a; unit32_t b; int8_t c; } u1; 4 bytes.

Which choice is not a difference between a class and a struct Linkedin?

Which of the following is not a difference between a class and a struct? Because structs are part of the C programming language, there are some complexity between C and C++ structs. This is not the case with classes. Classes may have member functions; structs are private.

What is the smallest size a variable of the type Child_t may occupy in memory?

This means that an object of type child_t_packed will occupy exactly one byte in memory.

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Which type of class Cannot be created?

Explanation: Instance of abstract class can’t be created as it will not have any constructor of its own, hence while creating an instance of class, it can’t initialize the object members. Actually the class inheriting the abstract class can have its instance because it will have implementation of all members.

What qualities must a class possess?

Class Quality

  • Coupling.
  • Cohesion.
  • Sufficiency.
  • Completeness.
  • Primitiveness.

What are the different types of storage classes?

There are four different types of storage classes that we use in the C language:

  • Automatic Storage Class.
  • External Storage Class.
  • Static Storage Class.
  • Register Storage Class.

Which is not C++ storage class?

C++ Storage Classes

Storage Class Keyword Visibility
Register register Local
Mutable mutable Local
External extern Global
Static static Local

Which storage class is used for faster execution?

(b) Use register storage class for those variables that are being used very often in a program, for faster execution. A typical application of register storage class is loop counters.

Which choice is not an advantage of using Getters and setters?

Which of the following is NOT an advantage of using getters and setters? Getters and setters can speed up compilation. Getters and setters provide encapsulation of behavior. Getters and setters provide a debugging point for when a property changes at runtime.

What is one difference between a struct and a union?

Structures are used to represent a record. A union is a special data type available in C that allows storing different data types in the same memory location. You can define a union with many members, but only one member can contain a value at any given time.

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What is the difference between parameter and argument?

Note the difference between parameters and arguments: Function parameters are the names listed in the function’s definition. Function arguments are the real values passed to the function. Parameters are initialized to the values of the arguments supplied.

What is size of structure in C?

The size of the entire structure is 8 bytes. On knowing the structured padding, it is easier to redesign or rewrite the structure.

What is Bitfield structure?

Bit Fields in C Language

In programming terminology, a bit field is a data structure that allows the programmer to allocate memory to structures and unions in bits in order to utilize computer memory in an efficient manner.

How many bites are in a byte?

Bits are usually assembled into a group of eight to form a byte.

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