Chapter 8, Problem 1P

Create a C-string variable that contains a name, age, and title. Each field is separated by a space. For example, the string might contain “Bob 45 Programmer” or any other name/age/title in the same format. Assume the name, age, and title have no spaces themselves. Write a program using only functions from cstring (not the class string) that can extract the name, age, and title into separate variables. Test your program with a variety of names, ages, and titles.

Program Plan Intro

Program plan:

• Include the necessary header files.
• Declare the namespace.
• Define the “main()” function.
  • Declare the necessary variables.
  • Initialize the character array.
  •  Use the functions “strtok()” to split the string into tokens.
  • Use the function “strcpy()” to copy the source string into the destination string.
  • Print the result.

Program Description Answer

Program to display name, age and title into separate variables using the function “cstring”.

Explanation of Solution

Program:

//Include the header file iostream

#include<iostream>

//Include the header file cstring

#include<cstring>

//Declare the namespace

using namespace std;

//Define the main() function

int main()

{

  //Declare the necessary variables

  char name[20];

  char age[4];

  char title[50];

  //Initialize the char array

  char res[] = "Bob 45 Programmer";

 /*Call the function strtok() to split str into tokens and assign the result in *pch*/

  char *pch = strtok(res," ");

/*Call the function strcpy to copy the value in pch into     name*/

  strcpy(name,pch);

/*Call the function strtok() to split str into tokens and assign the result in *pch*/

  pch = strtok(NULL," ");

/*Call the function strcpy to copy the value in pch into age*/

  strcpy(age,pch);

/*Call the function strtok() to split str into tokens and assign the result in *pch*/

  pch = strtok(NULL," ");

/*Call the function strcpy to copy the value in pch into title*/

  strcpy(title,pch);

  //print the name

  cout<<"Name: "<<name<<" ";

  //print the age

  cout<<"Age: "<<age<<" ";

  //Print the title

  cout<<"Title: "<<title;

  //Return zero

  return 0;

}

Sample Output

Output:

Name: Bob Age: 45 Title: Programmer