Variables: A variable is a name given to the storage memory; the variables are declared with a data-type which represents the type of data needs to be stored in the variable. It contains a value which is to be stored in the memory. Those values are then used in a program and they undergo a set of operations. Example: int number = 10; In the above line, The “int” represents the data type of the variable. The “number” represents the name of the variable. The “10” represents the value of the variable. Rules to naming a variable: To name a variable, it should undergo certain criteria; they are as follows: A variable name should not start with any numeric digits. The keywords are not to be named as a variable name. A variable does not include any special characters. A variable can contain alphabets, digits and underscore. The variables that do not meet the above criteria are considered as illegal variables.

Question

Want to see more full solutions like this?

Answer 1

Question

Chapter 3, Problem 2E

Program Plan Intro

Variables:

A variable is a name given to the storage memory; the variables are declared with a data-type which represents the type of data needs to be stored in the variable.

It contains a value which is to be stored in the memory.

Those values are then used in a program and they undergo a set of operations.

Example:

int number = 10;

In the above line,

The “int” represents the data type of the variable.

The “number” represents the name of the variable.

The “10” represents the value of the variable.

Rules to naming a variable:

To name a variable, it should undergo certain criteria; they are as follows:

A variable name should not start with any numeric digits.

The keywords are not to be named as a variable name.

A variable does not include any special characters.

A variable can contain alphabets, digits and underscore.

The variables that do not meet the above criteria are considered as illegal variables.

Expert Solution & Answer

Explanation of Solution

Identifying the illegal variables:

Consider the variable “Int”,

It is a legal variable, because a variable name can be a string.

Consider the variable “char”,

It is an illegal variable, because a char is a data type.

Consider the variable “6_05”,

It is an illegal variable, because a variable name should not start with any numeric values.

Consider the variable “Calloc”,

It is a legal variable, because a variable name can be a string.

Consider the variable “Xx”,

It is a legal variable, because a variable name can be a string.

Consider the variable “alpha_beta_routine”,

It is a legal variable, because a variable name can be a string.

Consider the variable “floating”,

It is a legal variable, because a variable name can be a string.

Consider the variable “_1312”,

It is an illegal variable, because a variable name should not start with any numeric values or underscore values.

Consider the variable “z”,

It is a legal variable, because a variable name can be a single character.

Consider the variable “ReInitialize”,

It is a legal variable, because a variable name can be a string.

Consider the variable “_”,

It is an illegal variable, because a variable name should not start with underscore values.

Consider the variable “A$”,

It is an illegal variable, because a variable name should not contains special character.

Therefore, in the given variables, the illegal variables are “char”, “6_05”, “_1312”, “_” and “A$”.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Students have asked these similar questions

Which of the following statements is True? a. Floating point addition is not generally associative which can be seen when values differ greatly in magnitude, the smaller value tends to be zeroed out or may lose significant digits when making the exponents the same. b. Floating point addition is generally associative which can be seen when values differ slightly in magnitude, the larger value tends to be zeroed out or may lose significant digits when making the exponents the same.

use python language only, no c++ or other

Why is it important to avoid using 'magic numbers' directly in code and instead use constants?

Answer 2

Question

Chapter 3, Problem 2E

Program Plan Intro

Variables:

A variable is a name given to the storage memory; the variables are declared with a data-type which represents the type of data needs to be stored in the variable.

It contains a value which is to be stored in the memory.

Those values are then used in a program and they undergo a set of operations.

Example:

int number = 10;

In the above line,

The “int” represents the data type of the variable.

The “number” represents the name of the variable.

The “10” represents the value of the variable.

Rules to naming a variable:

To name a variable, it should undergo certain criteria; they are as follows:

A variable name should not start with any numeric digits.

The keywords are not to be named as a variable name.

A variable does not include any special characters.

A variable can contain alphabets, digits and underscore.

The variables that do not meet the above criteria are considered as illegal variables.

Expert Solution & Answer

Explanation of Solution

Identifying the illegal variables:

Consider the variable “Int”,

It is a legal variable, because a variable name can be a string.

Consider the variable “char”,

It is an illegal variable, because a char is a data type.

Consider the variable “6_05”,

It is an illegal variable, because a variable name should not start with any numeric values.

Consider the variable “Calloc”,

It is a legal variable, because a variable name can be a string.

Consider the variable “Xx”,

It is a legal variable, because a variable name can be a string.

Consider the variable “alpha_beta_routine”,

It is a legal variable, because a variable name can be a string.

Consider the variable “floating”,

It is a legal variable, because a variable name can be a string.

Consider the variable “_1312”,

It is an illegal variable, because a variable name should not start with any numeric values or underscore values.

Consider the variable “z”,

It is a legal variable, because a variable name can be a single character.

Consider the variable “ReInitialize”,

It is a legal variable, because a variable name can be a string.

Consider the variable “_”,

It is an illegal variable, because a variable name should not start with underscore values.

Consider the variable “A$”,

It is an illegal variable, because a variable name should not contains special character.

Therefore, in the given variables, the illegal variables are “char”, “6_05”, “_1312”, “_” and “A$”.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Answer 3

Question

Chapter 3, Problem 2E

Program Plan Intro

Variables:

A variable is a name given to the storage memory; the variables are declared with a data-type which represents the type of data needs to be stored in the variable.

It contains a value which is to be stored in the memory.

Those values are then used in a program and they undergo a set of operations.

Example:

int number = 10;

In the above line,

The “int” represents the data type of the variable.

The “number” represents the name of the variable.

The “10” represents the value of the variable.

Rules to naming a variable:

To name a variable, it should undergo certain criteria; they are as follows:

A variable name should not start with any numeric digits.

The keywords are not to be named as a variable name.

A variable does not include any special characters.

A variable can contain alphabets, digits and underscore.

The variables that do not meet the above criteria are considered as illegal variables.

Expert Solution & Answer

Explanation of Solution

Identifying the illegal variables:

Consider the variable “Int”,

It is a legal variable, because a variable name can be a string.

Consider the variable “char”,

It is an illegal variable, because a char is a data type.

Consider the variable “6_05”,

It is an illegal variable, because a variable name should not start with any numeric values.

Consider the variable “Calloc”,

It is a legal variable, because a variable name can be a string.

Consider the variable “Xx”,

It is a legal variable, because a variable name can be a string.

Consider the variable “alpha_beta_routine”,

It is a legal variable, because a variable name can be a string.

Consider the variable “floating”,

It is a legal variable, because a variable name can be a string.

Consider the variable “_1312”,

It is an illegal variable, because a variable name should not start with any numeric values or underscore values.

Consider the variable “z”,

It is a legal variable, because a variable name can be a single character.

Consider the variable “ReInitialize”,

It is a legal variable, because a variable name can be a string.

Consider the variable “_”,

It is an illegal variable, because a variable name should not start with underscore values.

Consider the variable “A$”,

It is an illegal variable, because a variable name should not contains special character.

Therefore, in the given variables, the illegal variables are “char”, “6_05”, “_1312”, “_” and “A$”.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Answer 4

Question

Chapter 3, Problem 2E

Program Plan Intro

Variables:

A variable is a name given to the storage memory; the variables are declared with a data-type which represents the type of data needs to be stored in the variable.

It contains a value which is to be stored in the memory.

Those values are then used in a program and they undergo a set of operations.

Example:

int number = 10;

In the above line,

The “int” represents the data type of the variable.

The “number” represents the name of the variable.

The “10” represents the value of the variable.

Rules to naming a variable:

To name a variable, it should undergo certain criteria; they are as follows:

A variable name should not start with any numeric digits.

The keywords are not to be named as a variable name.

A variable does not include any special characters.

A variable can contain alphabets, digits and underscore.

The variables that do not meet the above criteria are considered as illegal variables.

Expert Solution & Answer

Explanation of Solution

Identifying the illegal variables:

Consider the variable “Int”,

It is a legal variable, because a variable name can be a string.

Consider the variable “char”,

It is an illegal variable, because a char is a data type.

Consider the variable “6_05”,

It is an illegal variable, because a variable name should not start with any numeric values.

Consider the variable “Calloc”,

It is a legal variable, because a variable name can be a string.

Consider the variable “Xx”,

It is a legal variable, because a variable name can be a string.

Consider the variable “alpha_beta_routine”,

It is a legal variable, because a variable name can be a string.

Consider the variable “floating”,

It is a legal variable, because a variable name can be a string.

Consider the variable “_1312”,

It is an illegal variable, because a variable name should not start with any numeric values or underscore values.

Consider the variable “z”,

It is a legal variable, because a variable name can be a single character.

Consider the variable “ReInitialize”,

It is a legal variable, because a variable name can be a string.

Consider the variable “_”,

It is an illegal variable, because a variable name should not start with underscore values.

Consider the variable “A$”,

It is an illegal variable, because a variable name should not contains special character.

Therefore, in the given variables, the illegal variables are “char”, “6_05”, “_1312”, “_” and “A$”.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Answer 5

Chapter 3, Problem 2E

Program Plan Intro

Variables:

A variable is a name given to the storage memory; the variables are declared with a data-type which represents the type of data needs to be stored in the variable.

It contains a value which is to be stored in the memory.

Those values are then used in a program and they undergo a set of operations.

Example:

int number = 10;

In the above line,

The “int” represents the data type of the variable.

The “number” represents the name of the variable.

The “10” represents the value of the variable.

Rules to naming a variable:

To name a variable, it should undergo certain criteria; they are as follows:

A variable name should not start with any numeric digits.

The keywords are not to be named as a variable name.

A variable does not include any special characters.

A variable can contain alphabets, digits and underscore.

The variables that do not meet the above criteria are considered as illegal variables.

Expert Solution & Answer

Explanation of Solution

Identifying the illegal variables:

Consider the variable “Int”,

It is a legal variable, because a variable name can be a string.

Consider the variable “char”,

It is an illegal variable, because a char is a data type.

Consider the variable “6_05”,

It is an illegal variable, because a variable name should not start with any numeric values.

Consider the variable “Calloc”,

It is a legal variable, because a variable name can be a string.

Consider the variable “Xx”,

It is a legal variable, because a variable name can be a string.

Consider the variable “alpha_beta_routine”,

It is a legal variable, because a variable name can be a string.

Consider the variable “floating”,

It is a legal variable, because a variable name can be a string.

Consider the variable “_1312”,

It is an illegal variable, because a variable name should not start with any numeric values or underscore values.

Consider the variable “z”,

It is a legal variable, because a variable name can be a single character.

Consider the variable “ReInitialize”,

It is a legal variable, because a variable name can be a string.

Consider the variable “_”,

It is an illegal variable, because a variable name should not start with underscore values.

Consider the variable “A$”,

It is an illegal variable, because a variable name should not contains special character.

Therefore, in the given variables, the illegal variables are “char”, “6_05”, “_1312”, “_” and “A$”.

Answer 6

Chapter 3, Problem 2E

Program Plan Intro

Variables:

A variable is a name given to the storage memory; the variables are declared with a data-type which represents the type of data needs to be stored in the variable.

It contains a value which is to be stored in the memory.

Those values are then used in a program and they undergo a set of operations.

Example:

int number = 10;

In the above line,

The “int” represents the data type of the variable.

The “number” represents the name of the variable.

The “10” represents the value of the variable.

Rules to naming a variable:

To name a variable, it should undergo certain criteria; they are as follows:

A variable name should not start with any numeric digits.

The keywords are not to be named as a variable name.

A variable does not include any special characters.

A variable can contain alphabets, digits and underscore.

The variables that do not meet the above criteria are considered as illegal variables.

Expert Solution & Answer

Explanation of Solution

Identifying the illegal variables:

Consider the variable “Int”,

It is a legal variable, because a variable name can be a string.

Consider the variable “char”,

It is an illegal variable, because a char is a data type.

Consider the variable “6_05”,

It is an illegal variable, because a variable name should not start with any numeric values.

Consider the variable “Calloc”,

It is a legal variable, because a variable name can be a string.

Consider the variable “Xx”,

It is a legal variable, because a variable name can be a string.

Consider the variable “alpha_beta_routine”,

It is a legal variable, because a variable name can be a string.

Consider the variable “floating”,

It is a legal variable, because a variable name can be a string.

Consider the variable “_1312”,

It is an illegal variable, because a variable name should not start with any numeric values or underscore values.

Consider the variable “z”,

It is a legal variable, because a variable name can be a single character.

Consider the variable “ReInitialize”,

It is a legal variable, because a variable name can be a string.

Consider the variable “_”,

It is an illegal variable, because a variable name should not start with underscore values.

Consider the variable “A$”,

It is an illegal variable, because a variable name should not contains special character.

Therefore, in the given variables, the illegal variables are “char”, “6_05”, “_1312”, “_” and “A$”.

Answer 7

Chapter 3, Problem 2E

Program Plan Intro

Variables:

A variable is a name given to the storage memory; the variables are declared with a data-type which represents the type of data needs to be stored in the variable.

It contains a value which is to be stored in the memory.

Those values are then used in a program and they undergo a set of operations.

Example:

int number = 10;

In the above line,

The “int” represents the data type of the variable.

The “number” represents the name of the variable.

The “10” represents the value of the variable.

Rules to naming a variable:

To name a variable, it should undergo certain criteria; they are as follows:

A variable name should not start with any numeric digits.

The keywords are not to be named as a variable name.

A variable does not include any special characters.

A variable can contain alphabets, digits and underscore.

The variables that do not meet the above criteria are considered as illegal variables.

Answer 8

Expert Solution & Answer

Explanation of Solution

Identifying the illegal variables:

Consider the variable “Int”,

It is a legal variable, because a variable name can be a string.

Consider the variable “char”,

It is an illegal variable, because a char is a data type.

Consider the variable “6_05”,

It is an illegal variable, because a variable name should not start with any numeric values.

Consider the variable “Calloc”,

It is a legal variable, because a variable name can be a string.

Consider the variable “Xx”,

It is a legal variable, because a variable name can be a string.

Consider the variable “alpha_beta_routine”,

It is a legal variable, because a variable name can be a string.

Consider the variable “floating”,

It is a legal variable, because a variable name can be a string.

Consider the variable “_1312”,

It is an illegal variable, because a variable name should not start with any numeric values or underscore values.

Consider the variable “z”,

It is a legal variable, because a variable name can be a single character.

Consider the variable “ReInitialize”,

It is a legal variable, because a variable name can be a string.

Consider the variable “_”,

It is an illegal variable, because a variable name should not start with underscore values.

Consider the variable “A$”,

It is an illegal variable, because a variable name should not contains special character.

Therefore, in the given variables, the illegal variables are “char”, “6_05”, “_1312”, “_” and “A$”.

Answer 9

Expert Solution & Answer

Answer 10

Expert Solution & Answer

Answer 11

Ch. 3 - Type in and run the five programs presented in...Ch. 3 - Prob. 2E Ch. 3 - Prob. 3E Ch. 3 - Write a program that converts 27 from degrees...Ch. 3 - Prob. 5E Ch. 3 - Prob. 6E Ch. 3 - Write a program that evaluates the following...Ch. 3 - Prob. 8E Ch. 3 - Prob. 9E

Explanation of Solution

Want to see more full solutions like this?

Chapter 3 Solutions