Question

Describe the purpose of the following function with its syntax:

toUpperCase() 

Answer 1

This function returns the supplied argument as an upper-case character or string. The value remains the same whether the character is already uppercase or is not a letter. 

Example 1: 

char c = Character.toUpperCase('a'); 
System.out.println(c); 

Output: 'A'

Example2: 

Strings = hello123"; 
s = s.toUpperCase(); System.out.println(s); 

Output: HELLO123