LeetCode-in-Java
709. To Lower Case
Easy
Given a string s, return the string after replacing every uppercase letter with the same lowercase letter.
Example 1:
Input: s = “Hello”
Output: “hello”
Example 2:
Input: s = “here”
Output: “here”
Example 3:
Input: s = “LOVELY”
Output: “lovely”
Constraints:
1 <= s.length <= 100sconsists of printable ASCII characters.
Solution
public class Solution {
public String toLowerCase(String s) {
char[] c = s.toCharArray();
for (int i = 0; i < s.length(); i++) {
if (c[i] <= 'Z' && c[i] >= 'A') {
c[i] = (char) (c[i] - 'A' + 'a');
}
}
return new String(c);
}
}