problem 1) prepare a program to reverse a string.

problem 2) prepare a program to check a string for palindrome.

problem 3) prepare a program to copy a string into another string.

problem 4) prepare a program to concatenate two strings.

problem 5) prepare a program to compare two strings.

problem 6) prepare a program to replace every space in a string with a hyphen, tab with a hash and digit with a slash.

problem 7) prepare a program to input a string and replace every lower case letter with upper case letter, upper case letter with a lower case letter, digit with a ‘#’ and a special symbol with a ‘%’.Display the new string.

problem 8) prepare a program to encrypt and decrypt a string using your own method of encryption anddecryption.

problem 9) prepare a program to reverse all the strings stored in the array.

problem 10) prepare a program to swap two strings stored in the array.

problem 11) prepare a program to input 5 strings in an array of strings and display all the strings with their lengths.

problem 12) prepare a program to search a string in the array of strings.

problem 13) prepare a program to display all the palindrome strings from the array of strings.

problem 14) prepare a program to convert a string into upper case and vice versa.

problem 15) prepare a program to extract given number of characters from the left of the string.