// include the library code:
#include <LiquidCrystal.h>

// initialize the library by associating any needed LCD interface pin
// with the arduino pin number it is connected to
const int rs = 9, en = 8, d4 = 4, d5 = 5, d6 = 6, d7 = 7;
LiquidCrystal lcd(rs, en, d4, d5, d6, d7);

void setup() {
  // set up the LCD's number of columns and rows:-
  lcd.begin(16, 2);  
}

void loop() {
  lcd.clear();                      // clear display
  lcd.setCursor(0, 0);              // move cursor to   (0, 0)
  lcd.print("Hello World!!!");      // print message at (0, 0)
  delay(2000);                      // display the above for two seconds  
}