#include <LiquidCrystal_I2C.h>

class LcdControl : public LiquidCrystal_I2C {
  public:

    LcdControl( uint8_t lcd_Addr, uint8_t lcd_cols, uint8_t lcd_rows) :
      // base class constructor
      LiquidCrystal_I2C ( lcd_Addr, lcd_cols, lcd_rows ) {
    }

  
    void printOnLcd( const char * data, int column, int line) {
      clear();
      setCursor(column, line);
      print(data);
    }

} ;

LcdControl lcd(0x27, 20, 4);



void setup() {

  Wire.begin() ;
  lcd.init() ;
  lcd.backlight();

  
  lcd.printOnLcd( "hello world2", 0 , 0 ) ;
  delay(1000) ;

  lcd.printOnLcd( "hello world3", 1 , 2 ) ;
  
}

void loop() {

}