Home.java

package drinking;

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.Statement;
import java.util.Scanner;

public class Home {

	public static void main(String[] args) {
		
		Scanner getUserInput = new Scanner(System.in);
		
		int userInput = 0;
		
		Dblibrary dbl = new Dblibrary();
		
		do
		{
			System.out.println("1) To Read the data (SELECT)");
			System.out.println("2) To Insert the data (INSERT)");
			System.out.println("3) To update the data (UPDATE)");
			System.out.println("4) To Delete the data (DELETE)");
			System.out.println("0) To exit");
			System.out.print("Enter your choice:");
			userInput = getUserInput.nextInt();
			
			if(userInput == 1) {
				
				dbl.readTheData();
				
			} else if(userInput == 2){
				
				System.out.print("Enter interns points:");
				int points = getUserInput.nextInt();
				
				getUserInput.nextLine();
				
				System.out.print("Enter intern name:");
				String name = getUserInput.nextLine();
				dbl.createData(name, points);
				
			} else if(userInput == 3) {
				
				System.out.print("Enter intern id:");
				int internId = getUserInput.nextInt();
				
				// check if id exists
				
				getUserInput.nextLine();
				
				System.out.print("Enter new name:");
				String name = getUserInput.nextLine();
				System.out.print("Enter new points:");
				int points = getUserInput.nextInt();
				
				if(dbl.updateData(internId, name, points))
				{
					System.out.println("Intern details udpated");
				}
				else
				{
					System.out.println("Unable to udpate intern details");
				}
				
			} else if (userInput == 4) {
				
				System.out.print("Enter intern id to be deleted:");
				int internId = getUserInput.nextInt();
				
				getUserInput.nextLine();
				
				if(dbl.deleteRow(internId) == 1) {
					System.out.println("Intern details removed");
				} else {
					System.out.println("Something went wrong");
				}
				
			} else if(userInput == 0) {
				
				System.out.println("Program existed successfully!");
				
			} else {
				
				System.out.println("Invalid input " + userInput);
				
			}
		} while (userInput != 0);
		
	}

}