@@ -0,0 +1,421 @@
+import java.util.Scanner;%0Aimport java.util.StringTokenizer;%0A%0Apublic class Solution %7B%0A%0A%09public static void main( String%5B%5D args ) %7B%0A%0A%09%09Scanner sc = new Scanner( System.in );%0A%09%09String sentence = sc.nextLine();%0A%09%09sc.close();%0A%09%09StringTokenizer st = new StringTokenizer( sentence, %22 !%5B,?.%5C%5C_'@+%5D%22 );%0A%09%09System.out.println( st.countTokens() );%0A%09%09while ( st.hasMoreTokens() ) %7B%0A%09%09%09System.out.println( st.nextToken() );%0A%09%09%7D%0A%0A%09%7D%0A%0A%7D%0A

Add day 20 solution