4. (Useful utility) Modify the program written for Exercise 3 to search for the first occurrence of a user-entered sequence of characters, and then replace this sequence, when it's found in the string, with a second user-entered sequence. For example, if the entered string is Figure 4-4 illustrates the output of Program 4-2 and the user enters that 4- is to be replaced by 3-, the resulting string is Figure 3-4 illustrates the output of Program 4-2. (Only the first occurrence of the searched-for sequence has been changed.) 5. (Useful utility) Modify the program written for Exercise 4 to replace all occurrences of the designated sequence of characters with the new sequence of characters. For example, if the entered string is Figure 4-4 illustrates the output of Program 4-2 and the user enters that 4- is to be replaced by 3-, the resulting string is Figure 3-4 illustrates the output of Program 3-2.
4. (Useful utility) Modify the program written for Exercise 3 to search for the first occurrence of a user-entered sequence of characters, and then replace this sequence, when it's found in the string, with a second user-entered sequence. For example, if the entered string is Figure 4-4 illustrates the output of Program 4-2 and the user enters that 4- is to be replaced by 3-, the resulting string is Figure 3-4 illustrates the output of Program 4-2. (Only the first occurrence of the searched-for sequence has been changed.) 5. (Useful utility) Modify the program written for Exercise 4 to replace all occurrences of the designated sequence of characters with the new sequence of characters. For example, if the entered string is Figure 4-4 illustrates the output of Program 4-2 and the user enters that 4- is to be replaced by 3-, the resulting string is Figure 3-4 illustrates the output of Program 3-2.
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
Related questions
Question
include
#include
using namespace std;
int main()
{
char str[20];
//Step 1
//Input string from user
cout<>str;
//Step 2
// Start traversing the string str
for (int i=0; str[i] != '\0'; i++)
{
//Step 3
// If character is 'e'
if (str[i]=='e')
{
// Replace that character with 'x'
str[i] = 'x';
}
}
//Step 4
// Display the string
cout<

Transcribed Image Text:**Text Transcription for Educational Website**
---
### String Manipulation Exercises
#### 4. (Useful utility)
Modify the program written for Exercise 3 to search for the first occurrence of a user-entered sequence of characters, and then replace this sequence, when it’s found in the string, with a second user-entered sequence. For example, if the entered string is `Figure 4-4 illustrates the output of Program 4-2` and the user enters that `4-` is to be replaced by `3-`, the resulting string is `Figure 3-4 illustrates the output of Program 4-2`. (Only the first occurrence of the searched-for sequence has been changed.)
#### 5. (Useful utility)
Modify the program written for Exercise 4 to replace all occurrences of the designated sequence of characters with the new sequence of characters. For example, if the entered string is `Figure 4-4 illustrates the output of Program 4-2` and the user enters that `4-` is to be replaced by `3-`, the resulting string is `Figure 3-4 illustrates the output of Program 3-2`.
---
##### Explanation of Example:
- **Exercise 4 Example:**
- **Original String:** `Figure 4-4 illustrates the output of Program 4-2`
- **User's Replacement Choice:** Replace `4-` with `3-`
- **Resulting String:** `Figure 3-4 illustrates the output of Program 4-2`
- **Note:** Only the first occurrence of `4-` is replaced.
- **Exercise 5 Example:**
- **Original String:** `Figure 4-4 illustrates the output of Program 4-2`
- **User's Replacement Choice:** Replace `4-` with `3-`
- **Resulting String:** `Figure 3-4 illustrates the output of Program 3-2`
- **Note:** All occurrences of `4-` are replaced.
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