Java toUpperCase() method
toUpperCase() method is used to convert lowercase characters to uppercase.
Syntax
char toUpperCase(char ch)
Parameters
ch -- The characters to be converted.
Return Value
Returns the uppercase form of the converted character, if any; otherwise, returns the character itself.
Example
public class Test {public static void main(String args[]) {System.out.println(Character.toUpperCase('a'));System.out.println(Character.toUpperCase('A'));}}
The execution result of the above program is:
A A