Code:
#include iostream
#include string
#include cstdlib
using namespace std;
int main()
{
int choice, pos, len;
string::iterator it;
size_t found;
string s, str = "This is a Test String.";
cout<<"Initial String is--> "<
while (1)
{
cout<<"\n---------------------"<
cout<<"String Implementation in Stl"<
cout<<"\n---------------------"<
cout<<"1.Insert Substring in a String"<
cout<<"2.Erase Substring from a String"<
cout<<"3.Append Substring to a String"<
cout<<"4.Replace the String with a Substrng"<
cout<<"5.Size of the String"<
cout<<"6.Find substring in a String"<
cout<<"7.Display the String"<
cout<<"8.Exit"<
cout<<"Enter your Choice: ";
cin>>choice;
switch(choice)
{
case 1:
cout<<"Enter the substring to be inserted: ";
cin>>s;
cout<<"Position after which substring to be inserted: ";
cin>>pos;
if (pos <= str.length())
str.insert(pos, s);
else
cout<<"Position out of bounds"<
break;
case 2:
cout<<"Position after which substring to be erased: ";
cin>>pos;
cout<<"Length of the substring to be deleted: ";
cin>>len;
str.erase(pos, len);
break;
case 3:
s = " This is an appended string.";
str.append(s);
break;
case 4:
s = "n example";
str.replace(9, 5, s);
break;
case 5:
cout<<"Size of the string: "<
break;
case 6:
cout<<"Enter substring to be found: ";
cin>>s;
found = str.find(s);
if (found != string::npos)
cout <<"Substring "<
else
cout <<"Substring "<
break;
case 7:
for (it = str.begin(); it != str.end(); ++it)
cout<<*it;
cout<
break;
case 8:
exit(1);
break;
default:
cout<<"Wrong Choice"<
}
}
return 0;
}
Output:
Initial String is--> This is a Test String.
---------------------
String Implementation in Stl
---------------------
1.Insert Substring in a String
2.Erase Substring from a String
3.Append Substring to a String
4.Replace the String with a Substrng
5.Size of the String
6.Find substring in a String
7.Display the String
8.Exit
Enter your Choice: 1
Enter the substring to be inserted: example
Position after which substring to be inserted: 5
---------------------
String Implementation in Stl
---------------------
1.Insert Substring in a String
2.Erase Substring from a String
3.Append Substring to a String
4.Replace the String with a Substrng
5.Size of the String
6.Find substring in a String
7.Display the String
8.Exit
Enter your Choice: 7
This exampleis a Test String.
---------------------
String Implementation in Stl
---------------------
1.Insert Substring in a String
2.Erase Substring from a String
3.Append Substring to a String
4.Replace the String with a Substrng
5.Size of the String
6.Find substring in a String
7.Display the String
8.Exit
Enter your Choice: 2
Position after which substring to be erased: 5
Length of the substring to be deleted: 7
---------------------
String Implementation in Stl
---------------------
1.Insert Substring in a String
2.Erase Substring from a String
3.Append Substring to a String
4.Replace the String with a Substrng
5.Size of the String
6.Find substring in a String
7.Display the String
8.Exit
Enter your Choice: 7
This is a Test String.
---------------------
String Implementation in Stl
---------------------
1.Insert Substring in a String
2.Erase Substring from a String
3.Append Substring to a String
4.Replace the String with a Substrng
5.Size of the String
6.Find substring in a String
7.Display the String
8.Exit
Enter your Choice: 3
---------------------
String Implementation in Stl
---------------------
1.Insert Substring in a String
2.Erase Substring from a String
3.Append Substring to a String
4.Replace the String with a Substrng
5.Size of the String
6.Find substring in a String
7.Display the String
8.Exit
Enter your Choice: 7
This is a Test String. This is an appended string.
---------------------
String Implementation in Stl
---------------------
1.Insert Substring in a String
2.Erase Substring from a String
3.Append Substring to a String
4.Replace the String with a Substrng
5.Size of the String
6.Find substring in a String
7.Display the String
8.Exit
Enter your Choice: 4
---------------------
String Implementation in Stl
---------------------
1.Insert Substring in a String
2.Erase Substring from a String
3.Append Substring to a String
4.Replace the String with a Substrng
5.Size of the String
6.Find substring in a String
7.Display the String
8.Exit
Enter your Choice: 7
This is an example String. This is an appended string.
---------------------
String Implementation in Stl
---------------------
1.Insert Substring in a String
2.Erase Substring from a String
3.Append Substring to a String
4.Replace the String with a Substrng
5.Size of the String
6.Find substring in a String
7.Display the String
8.Exit
Enter your Choice: 5
Size of the string: 54
---------------------
String Implementation in Stl
---------------------
1.Insert Substring in a String
2.Erase Substring from a String
3.Append Substring to a String
4.Replace the String with a Substrng
5.Size of the String
6.Find substring in a String
7.Display the String
8.Exit
Enter your Choice: 6
Enter substring to be found: string
Substring string found at 47
---------------------
String Implementation in Stl
---------------------
1.Insert Substring in a String
2.Erase Substring from a String
3.Append Substring to a String
4.Replace the String with a Substrng
5.Size of the String
6.Find substring in a String
7.Display the String
8.Exit
Enter your Choice: 8
------------------
(program exited with code: 1)
Press return to continue
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