Translation of uppercase and lowercase letters in Java

Method One:

Uppercase and lowercase letters are subtracted from the ASCII code table by a value of 32

It is possible to convert a string into a character array

lowercase to uppercase minus 32

Uppercase to lowercase plus 32

String s= "good";

Char[] C = s.tochararray;

Capitalize first letter

c[0]-=32;

Method Two

In the String class

toLowerCase () The Word all letters lowercase

toUpperCase () Capitalize all letters of the word

SUBSTRING () intercepts a letter and converts it in combination with the above method

Translation of uppercase and lowercase letters in Java