#include <LiquidCrystal.h>
#include <Keypad.h>

// Initialize LCD with correct pins
LiquidCrystal lcd(0, 2, 22, 26, 27, 28);

const byte ROW_NUM = 4;    // Number of rows in the keypad
const byte COLUMN_NUM = 4; // Number of columns in the keypad

// Key mapping for the keypad
char keys[ROW_NUM][COLUMN_NUM] = {
  {'1', '2', '3', 'A'},
  {'4', '5', '6', 'B'},
  {'7', '8', '9', 'C'},
  {'*', '0', '#', 'D'}
};

// Define row and column pins
byte pin_rows[ROW_NUM] = {11, 10, 9, 8}; 
byte pin_column[COLUMN_NUM] = {7, 5, 4, 3}; // Missing semicolon fixed

// Initialize keypad
Keypad keypad = Keypad(makeKeymap(keys), pin_rows, pin_column, ROW_NUM, COLUMN_NUM);

void setup() {
  lcd.begin(16, 2);       // Set up LCD with 16x2 characters
  lcd.clear();            // Clear LCD display
  lcd.setCursor(0, 0); 
  lcd.print("Press a key:"); // Initial message
}

void loop() {
  char key = keypad.getKey(); // Read key press
  if (key) { 
    lcd.clear(); 
    lcd.setCursor(0, 0); 

    // Respond to keypress
    if (key == '1') {
      lcd.print("Mutton Biriyani");
      lcd.setCursor(0,1);
      lcd.print("Rs.300"); 
    } else if (key == '2') {
      lcd.print("Chicken Biriyani");
      lcd.setCursor(0,1);
      lcd.print("Rs.250"); 
    } else if (key == '3') {
      lcd.print("parneer Biriyani");
      lcd.setCursor(0,1);
      lcd.print("Rs.270"); 
    } else if (key == '4') {
      lcd.print("Chicken 65");
      lcd.setCursor(0,1);
      lcd.print("Rs.250"); 
    } else if (key == '5') {
      lcd.print("chicken lolipop");
      lcd.setCursor(0,1);
      lcd.print("Rs.230"); 
    } else if (key == '6') {
      lcd.print("Chicken fried rice");
      lcd.setCursor(0,1);
      lcd.print("Rs.200"); 
    } else if (key == '7') {
      lcd.print("gobi rice");
      lcd.setCursor(0,1);
      lcd.print("Rs.150"); 
    } else if (key == '8') {
      lcd.print("veg rice");
      lcd.setCursor(0,1);
      lcd.print("Rs.100"); 
    } else if (key == '9') {
      lcd.print("Coco-cola");
      lcd.setCursor(0,1);
      lcd.print("Rs.20"); 
    } else if (key=='C') {
      lcd.clear();
    }
  }
}