LCD screen and i2c!

1#include <LiquidCrystal_I2C.h>
2#include <Wire.h>
3
4LiquidCrystal_I2C  lcd(0x3F, 16, 2); //Make (0x3F, 16, 2),to(0x27,20,4) if the lcd screen is not showing  anything
5
6void setup() {
7  Serial.begin(9600);
8  lcd.init();
9  lcd.backlight();
10
11}
12
13void  loop() {
14     lcd.setCursor(0, 0);            //starting position
15     lcd.print("Arduino  projects");  //Anything you want
16     delay(2000);                    //delay  2 seconds
17     lcd.clear();                    //clear all 
18     lcd.setCursor(0,  0);            //starting position
19     lcd.print("# <Your Name>");     //Type  your name
20     /*delay(2000);
21     lcd.clear(); 
22     lcd.setCursor(0,  0); 
23     lcd.print("Something else"); 
24     delay(2000);*/                
25}
26