#include<LiquidCrystal.h>
LiquidCrystal lcd1(11,10,9,8,7,6);
void setup() {
  lcd1.begin(16,2);
}
void loop() {
  lcd1.setCursor(7,0);
  lcd1.print("hello\n\n");
  delay(1000);
  lcd1.noDisplay();
  lcd1.setCursor(7,1);
  lcd1.print("world");  //it will not show  ...... noDisplay  
  delay(1000);
  int i=analogRead(A0);
  lcd1.clear();
  delay(100);
  lcd1.display();
  lcd1.cursor();
  lcd1.print(i);
}