convert string to uppercase java code example

Example 1: java uppercase

"Hello World".toUpperCase()

Example 2: uppercase java

string s="hello";
s = Character.toUpperCase(s.charAt(0)) + s.substring(1);
The output will be: Hello

Example 3: string to uppercase

const upperCase = function(names){
    const toLower = names.toLowerCase().split(' ');
    const namesUpper = [];
    for(const wordName of toLower){
        namesUpper.push(wordName[0].toUpperCase() + wordName.slice(1));
    }
    return namesUpper.join(' ');
}

Example 4: java lower case to upper case

toUpperCase()