A variable should be declared as follows:

dataType identifier;

Examples:

int num1;

string name;

char grade;

Preferably the variables should be initialized during declaration itself or subsequently be assigned meaningful data through an assignment statement, before being used in an expression...

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Chapter 2, Problem 24SA

Chapter 2, Problem 26SA

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Chapter 2 Solutions

C++ Programming: From Problem Analysis to Program Design

Ch. 2 - 1. Mark the following statements as true or...Ch. 2 - Prob. 2MC Ch. 2 - Which of the following is not a reserved word in...Ch. 2 - Prob. 4SA Ch. 2 - 5. Are the identifiers quizNo1 and quiznol the...Ch. 2 - 6. Evaluate the following expressions. (3,...Ch. 2 - If int x = 10;, int y = 7;, double z = 4.5;, and...Ch. 2 - Prob. 8CP Ch. 2 - 9. Suppose that x, y, z, and w are int variables....Ch. 2 - Prob. 10SA

Ch. 2 - Which of the following are valid C++ assignment...Ch. 2 - Write C++ statements that accomplish the...Ch. 2 - Write each of the following as a C++ expression....Ch. 2 - Prob. 14SA Ch. 2 - Suppose x, y, and z are int variables and wandt...Ch. 2 - 16. Suppose x, y, and z are int variables and x =...Ch. 2 - Suppose a and b are int variables, c is a double...Ch. 2 - 18. Write C++ statements that accomplish the...Ch. 2 - Which of the following are correct C++ statements?...Ch. 2 - Give meaningful identifiers for the following...Ch. 2 - 21. Write C++ statements to do the following....Ch. 2 - Prob. 22SA Ch. 2 - The following program has syntax errors. Correct...Ch. 2 - Prob. 24SA Ch. 2 - Prob. 25SA Ch. 2 - Preprocessor directives begin with which of the...Ch. 2 - 27. Write equivalent compound statements if...Ch. 2 - 28. Write the following compound statements as...Ch. 2 - 29. Suppose a, b, and c are int variables and a =...Ch. 2 - Suppose a, b, and sum are int variables and c is a...Ch. 2 - Prob. 31SA Ch. 2 - Prob. 32SA Ch. 2 - Prob. 33SA Ch. 2 - Prob. 34SA Ch. 2 - 1. Write a program that produces the following...Ch. 2 - Prob. 2PE Ch. 2 - Prob. 3PE Ch. 2 - 4. Repeat Programming Exercise 3 by declaring...Ch. 2 - Prob. 5PE Ch. 2 - Prob. 6PE Ch. 2 - 7. Write a program that prompts the user to input...Ch. 2 - Prob. 8PE Ch. 2 - 9. Write a program that prompts the user to enter...Ch. 2 - 10. Write a program that prompts the user to input...Ch. 2 - 11. Write a program that prompts the capacity, in...Ch. 2 - 12. Write a C++ program that prompts the user to...Ch. 2 - 13. To make a profit, a local store marks up the...Ch. 2 - 14. (Hard drive storage capacity) If you buy a 40...Ch. 2 - 15. Write a program to implement and test the...Ch. 2 - 16. A milk carton can hold 3.78 liters of milk....Ch. 2 - 17. Redo Programming Exercise 16 so that the user...Ch. 2 - Prob. 18PE Ch. 2 - 19. Write a program that prompts the user to input...Ch. 2 - 20. For each used car a salesperson sells, the...Ch. 2 - 21. Newton's law states that the force, , between...Ch. 2 - 22. One metric ton is approximately 2,205 pounds....Ch. 2 - 23. Cindy uses the services of a brokerage firm to...Ch. 2 - 24. A piece of wire is to be bent in the form of a...Ch. 2 - 25. Repeat Programming Exercise 24, but the wire...Ch. 2 - 26. A room has one door, two windows, and a...Ch. 2 - Prob. 27PE Ch. 2 - 28. In an elementary school, a mixture of equal...Ch. 2 - 29. A contractor orders, say, 30 cubic yards of...

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A variable should be declared as follows: dataType identifier; Examples: int num1; string name; char grade; Preferably the variables should be initialized during declaration itself or subsequently be assigned meaningful data through an assignment statement, before being used in an expression...

Solution Summary: The author explains that a variable should be declared as follows: dataType identifier; examples: int num1; string name; char grade.

Explanation of Solution

A variable should be declared as follows: dataType identifier; Examples: int num1; string name; char grade; Preferably the variables should be initialized during declaration itself or subsequently be assigned meaningful data through an assignment statement, before being used in an expression...

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Chapter 2 Solutions