Convert String upper Case in java | convert string uppercase to lowercase in |

Описание: Here, our task is to replace all the lower-case characters in the string to upper-case and upper-case characters to lower-case.

For this purpose, we need to traverse the string and check for each character. If the character is a lower-case character, make it upper-case by using the language-specific built-in method or add 32 to the lower-case character in C to change the ASCII value of the character.
#lowercaseletters #uppercaseletter
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