Operation On String

Write a program to perform following operation on string:

1. Find out Length of string

2. Copy.

3. Combined of two String.

4. A String breaks into two parts

5. Case Conversion 

6. Comparison.

#include<iostream.h>

#include<conio.h>

#include<string.h>

void main()

{

 char s1[20],s2[20],i;

 clrscr();

 cout<<"Enter the string to find the length:";

 cin>>s1;

 cout<<"\nLength of the string is..."<<strlen(s1);

 strcpy(s2,s1);

 cout<<"\n\nCopied string is..."<<s2;

 cout<<"\n\nEnter 2 strings to be concatenated:";

 cin>>s1>>s2;

 strcat(s1,s2);

 cout<<"\nConcatenated string is..."<<s1<<endl;

 cout<<endl<<"\nEnter 2 strings to be compared:";

 cin>>s1>>s2;

 i=strcmp(s1,s2);

 if(i==0)

  cout<<"\nBoth strings are equal\n";

 else if(i<0)

  cout<<s1<<" is less than "<<s2<<endl;

 else

  cout<<s1<<" is greater than "<<s2;

 cout<<"\n\nEnter the string to change into lower case:";

 cin>>s1;

 cout<<"\nLower case of the given string is..."<<strlwr(s1);

 cout<<"\n\nEnter the string to change into upper case:";

 cin>>s1;

 cout<<"\nUpper case of the given string is..."<<strupr(s1);

 cout<<"\n\nEnter the string to be reversed:";

 cin>>s1;

 cout<<"\nThe reversed string is..."<<strrev(s1);

 getch();

}

OUTPUT: