We can traverse strings using loops
for ( int i = 0 ; i < string.length() ; i++ ) {
System.out.println(string.substring(i , i + 1))
}^ would loop through each character in the string and print each letter on the next line ^ wouldve been useful for that reverse printing number thing from a while ago ^ if we tried to do i ⇐ string.length() we would get index our of bounds error
we can also use charAt(int index) to get a character at a specific index in a string charAt() is not on the ap exam so use substring so you learn it good
we can use string traversals to see how many characters in string are uppercase
we can replace substrings with other substrings
