杭电 2026 ( 首字母变大写 ) java

import java.util.*;

public class Main {

public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
while (sc.hasNext()) {
String str = sc.nextLine();
char arrc[] = str.toCharArray();
if (str.length() < 100) {
for (int i = 0; i < arrc.length; i++) {

if (i == 0) {
if (arrc[i] <= 65 || arrc[i] >= 90) {
arrc[i] = (char) (arrc[i] - 32);
}
}
if (arrc[i] == 32) {
if (arrc[i + 1] <= 65 || arrc[i + 1] >= 90) {

arrc[i + 1] = (char) (arrc[i + 1] - 32);
}

}
}
for (int i = 0; i < arrc.length; i++) {
System.out.print(arrc[i] + "");
}
System.out.println();

}
}
}
}