Char change
package com.codegym.task.task08.task0823;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
/*
Going national
*/
public class Solution {
public static void main(String[] args) throws IOException {
BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
String s = reader.readLine();
for (int i = 0; i < s.length(); i++)
{
if (i == 0 && s.charAt(i) != ' ')
{
int o = s.charAt(i) + 32;
char New = (char)o;
s.replace(s.charAt(i),New);
}
else if (s.charAt(i) == ' ')
{
int o = s.charAt(i) + 32;
char New = (char)o;
s.replace(s.charAt(i + 1),New);
}
}
System.out.println(s);
}
}