Union: In C++, the union is a user-define data type, which contains different type of elements with different lengths. It uses single memory location to hold more than one variable. It takes the memory of the largest data type. It conserves memory as it stores all the members in the same memory location. Union variable can initialize in main function within the program. Then initialize the union members using the union variable. Union variable can be declared in the type of an array and the entire array elements can be accessed through a loop. Declaration of union: The declaration of union is the same as a structure with the only difference that, instead of using a keyword “struct”, the keyword “union” should be used. Example: union Score { int rollNo; float marks; }; The “Score” is the union variable which is defined with the two members: “rollNo( as int data type)” and “marks (as float data type)”. The union variable will take up as much memory as the largest member.

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Answer 1

Question

Chapter 11.11, Problem 11.16CP

Program Plan Intro

Union:

In C++, the union is a user-define data type, which contains different type of elements with different lengths.

It uses single memory location to hold more than one variable. It takes the memory of the largest data type.

It conserves memory as it stores all the members in the same memory location.

Union variable can initialize in main function within the program. Then initialize the union members using the union variable.

Union variable can be declared in the type of an array and the entire array elements can be accessed through a loop.

Declaration of union:

The declaration of union is the same as a structure with the only difference that, instead of using a keyword “struct”, the keyword “union” should be used.

Example:

union Score

{

int rollNo;

float marks;

};

The “Score” is the union variable which is defined with the two members: “rollNo( as int data type)” and “marks (as float data type)”. The union variable will take up as much memory as the largest member.

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Answer 2

Question

Chapter 11.11, Problem 11.16CP

Program Plan Intro

Union:

In C++, the union is a user-define data type, which contains different type of elements with different lengths.

It uses single memory location to hold more than one variable. It takes the memory of the largest data type.

It conserves memory as it stores all the members in the same memory location.

Union variable can initialize in main function within the program. Then initialize the union members using the union variable.

Union variable can be declared in the type of an array and the entire array elements can be accessed through a loop.

Declaration of union:

The declaration of union is the same as a structure with the only difference that, instead of using a keyword “struct”, the keyword “union” should be used.

Example:

union Score

{

int rollNo;

float marks;

};

The “Score” is the union variable which is defined with the two members: “rollNo( as int data type)” and “marks (as float data type)”. The union variable will take up as much memory as the largest member.

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Answer 3

Question

Chapter 11.11, Problem 11.16CP

Program Plan Intro

Union:

In C++, the union is a user-define data type, which contains different type of elements with different lengths.

It uses single memory location to hold more than one variable. It takes the memory of the largest data type.

It conserves memory as it stores all the members in the same memory location.

Union variable can initialize in main function within the program. Then initialize the union members using the union variable.

Union variable can be declared in the type of an array and the entire array elements can be accessed through a loop.

Declaration of union:

The declaration of union is the same as a structure with the only difference that, instead of using a keyword “struct”, the keyword “union” should be used.

Example:

union Score

{

int rollNo;

float marks;

};

The “Score” is the union variable which is defined with the two members: “rollNo( as int data type)” and “marks (as float data type)”. The union variable will take up as much memory as the largest member.

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Answer 4

Question

Chapter 11.11, Problem 11.16CP

Program Plan Intro

Union:

In C++, the union is a user-define data type, which contains different type of elements with different lengths.

It uses single memory location to hold more than one variable. It takes the memory of the largest data type.

It conserves memory as it stores all the members in the same memory location.

Union variable can initialize in main function within the program. Then initialize the union members using the union variable.

Union variable can be declared in the type of an array and the entire array elements can be accessed through a loop.

Declaration of union:

The declaration of union is the same as a structure with the only difference that, instead of using a keyword “struct”, the keyword “union” should be used.

Example:

union Score

{

int rollNo;

float marks;

};

The “Score” is the union variable which is defined with the two members: “rollNo( as int data type)” and “marks (as float data type)”. The union variable will take up as much memory as the largest member.

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Answer 5

Chapter 11.11, Problem 11.16CP

Program Plan Intro

Union:

In C++, the union is a user-define data type, which contains different type of elements with different lengths.

It uses single memory location to hold more than one variable. It takes the memory of the largest data type.

It conserves memory as it stores all the members in the same memory location.

Union variable can initialize in main function within the program. Then initialize the union members using the union variable.

Union variable can be declared in the type of an array and the entire array elements can be accessed through a loop.

Declaration of union:

The declaration of union is the same as a structure with the only difference that, instead of using a keyword “struct”, the keyword “union” should be used.

Example:

union Score

{

int rollNo;

float marks;

};

The “Score” is the union variable which is defined with the two members: “rollNo( as int data type)” and “marks (as float data type)”. The union variable will take up as much memory as the largest member.

Answer 6

Chapter 11.11, Problem 11.16CP

Program Plan Intro

Union:

In C++, the union is a user-define data type, which contains different type of elements with different lengths.

It uses single memory location to hold more than one variable. It takes the memory of the largest data type.

It conserves memory as it stores all the members in the same memory location.

Union variable can initialize in main function within the program. Then initialize the union members using the union variable.

Union variable can be declared in the type of an array and the entire array elements can be accessed through a loop.

Declaration of union:

The declaration of union is the same as a structure with the only difference that, instead of using a keyword “struct”, the keyword “union” should be used.

Example:

union Score

{

int rollNo;

float marks;

};

The “Score” is the union variable which is defined with the two members: “rollNo( as int data type)” and “marks (as float data type)”. The union variable will take up as much memory as the largest member.

Answer 7

Chapter 11.11, Problem 11.16CP

Program Plan Intro

Union:

In C++, the union is a user-define data type, which contains different type of elements with different lengths.

It uses single memory location to hold more than one variable. It takes the memory of the largest data type.

It conserves memory as it stores all the members in the same memory location.

Union variable can initialize in main function within the program. Then initialize the union members using the union variable.

Union variable can be declared in the type of an array and the entire array elements can be accessed through a loop.

Declaration of union:

The declaration of union is the same as a structure with the only difference that, instead of using a keyword “struct”, the keyword “union” should be used.

Example:

union Score

{

int rollNo;

float marks;

};

The “Score” is the union variable which is defined with the two members: “rollNo( as int data type)” and “marks (as float data type)”. The union variable will take up as much memory as the largest member.

Answer 8

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Answer 10

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Answer 11

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