нужна подсказка.
package com.javarush.task.task08.task0823;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
/*
Омовение Рамы
*/
public class Solution {
public static void main(String[] args) throws IOException {
BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
String s = reader.readLine();
String []arr;
String delit = " ";
arr = s.split(delit);
StringBuilder bild = new StringBuilder();
for(int i = 0; i < arr.length; i++){
String str = (arr[i].substring(0,1).toUpperCase() + arr[i].substring(1) + "_");
bild.append(str);
}
System.out.print(bild.toString().trim());
}
}
