Explain what constructors and destructors are and describe what they are used for.

Explain what constructors and destructors are and describe what they are used for.
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The constructor is the method that initializes a class or structure and is run when a type is first instantiated. It is used to set default values and perform other tasks required by the class. A destructor is the method that is run as the object is being reclaimed by garbage collection. It contains any code that is required for cleanup of the object. 
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Related questions

Define what are constructors and destructors?

Description : Define what are constructors and destructors?

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Last Answer : Nothing

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Last Answer : Yes

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Describe the accessibility modifier “protected internal”.

Description : Describe the accessibility modifier “protected internal”. 

Last Answer : It is available to classes that are within the same assembly and derived from the specified base class.

Name and describe 5 different documentation tags.

Description : Name and describe 5 different documentation tags.

Last Answer : /// <value></value> /// <example></example> /// <exception cref=""></exception> /// <include file='' path='[@name=""]'/> /// ... cref=""/> /// <seealso cref=""/> /// </summary>

Describe garbage collection (in simple terms).

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Describe Jump statements: break, continue, and goto.

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Describe an operator from each of these categories:

Description : Describe an operator from each of these categories:

Last Answer : Arithmetic: + Logical (boolean and bitwise): & String concatenation: + Increment, decrement: ++ Shift: >> Relational: == Assignment: = Member access: . Indexing: [] Cast: () ... : + Object creation: new Type information: as Overflow exception control: checked Indirection and Address: *

Describe 5 numeric value types ranges.

Description : Describe 5 numeric value types ranges. 

Last Answer : sbyte -128 to 127, byte 0 – 255, short -32,768 to 32,767, int -2,147,483,648 to 2,147,483,647, ulong 0 to 18,446,744,073,709,551,615 

Describe the accessibility modifier “protected internal”.

Description : Describe the accessibility modifier “protected internal”. 

Last Answer : It is available to classes that are within the same assembly and derived from the specified base class.

Describe the accessibility modifier protected internal.

Description : Describe the accessibility modifier protected internal. 

Last Answer : It’s available to derived classes and classes within the same Assembly (and naturally from the base class it’s declared in). 

Explain the types of constructors in Java with suitable example.

Description : Explain the types of constructors in Java with suitable example.

Last Answer : Constructors are used to initialize an object as soon as it is created. Every time an object is created using the new' keyword, a constructor is invoked. If no constructor is defined in a class, java compiler creates ... of First Second Rectangle : "+ (r1.length*r1.breadth)); } }

Explain parameterized constructors with example.

Description : Explain parameterized constructors with example.

Last Answer : A constructor that can take arguments is known as parameterized constructor. In some applications, it may be necessary to initialize the various data members of different objects with different values when they ... as an argument. Member function put displays the value of data member m .

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Description : Explain multiple constructors in a class with suitable example. 

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Briefly explain the difference between Public (public), Friend (internal), and Private (private) access levels as they apply to user-defined types and members.

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Which of the following characteristics of constructor are true. i) They should be declared in the public section. ii) They are invoked automatically when the objects are created. iii) They do not have return type and void also. iv) We cannot refer their address. v) Constructors cannot virtual. A) Only i, ii, iii and v B) Only ii, iii, iv, and v C) Only i, iii, iv and v D) All i, ii, iii, iv and v

Description : Which of the following characteristics of constructor are true. i) They should be declared in the public section. ii) They are invoked automatically when the objects are created. iii) They do not have return type and void also. ... and v C) Only i, iii, iv and v D) All i, ii, iii, iv and v

Last Answer : D) All i, ii, iii, iv and v