public class Test {

  static final int SHIFT = 5;

  static char caesar(char c) {
    return (char) (c + SHIFT);
  }

  public static void main(String[] d) {

    String input = "This is a test";
    for (int index = 0; index < input.length(); index++) {
      System.out.print(caesar(input.charAt(index)));
    }
    System.out.println();
  }
}