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user.java
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user.java
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import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import java.util.Scanner;
public class user {
public static void purchase(Scanner sc, Integer Id1) {
try {
Class.forName("oracle.jdbc.driver.OracleDriver");
Connection connect = DriverManager.getConnection("jdbc:oracle:thin:@localhost:1521:XE", "Nishit", "hello123");
Statement stmt = connect.createStatement();
boolean done = false;
while (!done)
{
System.out.println("1. List of all Gifts");
System.out.println("2. List of Details of a particular Gift ID ");
System.out.println("3. Add Gifts to cart");
System.out.println("4. Check Your Cart or View your Cart.");
System.out.println("5. Logout");
String getValue;
getValue = sc.nextLine();
int choice;
try {
choice = Integer.parseInt(getValue);
} catch (Exception e) {
choice = 7;
}
switch (choice) {
case 1:
String query = "SELECT * from GiftItems";
try {
ResultSet values = stmt.executeQuery(query);
System.out.println("ID NAME PRICE");
while (values.next()) {
Integer id = values.getInt("ID");
Integer cost = values.getInt("PRICE");
String name = values.getString("NAME");
System.out.println(id + " " + name + " " + cost);
}
values.close();
} catch (Exception e) {
e.printStackTrace();
System.out.println("Data could not be retrieved");
}
break;
case 2:
String val ;
System.out.println("Enter the product ID");
val = sc.nextLine();
int ID;
try {
ID = Integer.parseInt(val);
} catch (Exception e) {
System.out.println(e);
System.out.println("Invalid choice. Please enter a valid product ID");
break;
}
String query1 = "SELECT * FROM GiftItems WHERE ID=" + ID;
ResultSet values = stmt.executeQuery(query1);
if (values.next()) {
System.out.println("ID NAME PRICE AVAILABILITY");
Integer id = values.getInt("ID");
Integer cost = values.getInt("PRICE");
String name = values.getString("NAME");
Integer avail = values.getInt("AVAILABILITY");
System.out.println(id + " " + name + " " + cost + " " + avail);
} else {
System.out.println("There is no product with " + ID + " ID");
}
values.close();
break;
case 3:
// CART.JAVA call karlena
System.out.println("Enter the ID of the product you want to add to cart");
String val1 ;
val1 = sc.nextLine();
Integer ID1;
try {
ID1 = Integer.parseInt(val1);
} catch (Exception e) {
System.out.println(e);
System.out.println("Invalid choice. Please enter a valid product ID");
break;
}
String quant;
System.out.println("Enter the quantity");
quant = sc.nextLine();
Integer quantity;
try {
quantity = Integer.parseInt(quant);
} catch (Exception e) {
System.out.println("Invalid quantity. Please Enter a valid quantity.");
break;
}
String query2 = "SELECT * from GiftItems WHERE ID=" + ID1;
ResultSet values1 = stmt.executeQuery(query2);
if (values1.next()) {
Integer cost = values1.getInt("PRICE");
Integer avail = values1.getInt("AVAILABILITY");
if (avail < quantity) {
System.out.println("There are only" + avail + "items available for gift ID:" + ID1);
continue;
}
System.out.println("Your total cost is:" + cost * quantity);
System.out.println("1. Confirm Add Cart\n2. Cancel Order");
String go = sc.nextLine();
Integer order;
try {
order = Integer.parseInt(go);
} catch (Exception e) {
System.out.println("Invalid choice");
break;
}
if (order == 1) {
// INSERT ORDER INTO THE BOOKING TABLE
String cart = "Insert into usercart values(" + Id1 + "," + ID1 + "," + quantity + ")";
try {
stmt.executeUpdate(cart);
System.out.println("Item added to cart");
} catch (Exception e) {
System.out.println("Could not add to cart");
System.out.println(e);
}
} else {
System.out.println("Cancelled");
}
} else {
System.out.println("No such product available");
}
values1.close();
break;
case 4:
// SAKSHAM MAHAJAN KA KAAM HAI YEH.
// String temp="Select * from usercart";
// ResultSet r=stmt.executeQuery(temp);
// while(r.next())
// {
// Integer usID=r.getInt("CUSTOMERID");
// Integer giID=r.getInt("GIFTID");
// Integer qn=r.getInt("QUANTITY");
// System.out.println("ORDER:"+usID+" "+giID+" "+qn);
// }
Cart cr = new Cart();
cr.fun(sc, Id1);
break;
case 5:
done = true;
break;
default:
System.out.println("Abe input dekh le");
break;
}
}
connect.close();
} catch (SQLException | ClassNotFoundException e) {
System.out.println("Database connectivity error");
System.out.println(e);
}
}
};