Here's a Java program that takes the number of drinks and tacos as input and calculates the total cost:
import java.util.Scanner;
public class Main {
 public static void main(String[] args) {
 Scanner scanner = new Scanner(System.in);
 
 System.out.print("Enter the number of drinks: ");
 int numDrinks = scanner.nextInt();
 
 System.out.print("Enter the number of tacos: ");
 int numTacos = scanner.nextInt();
 
 double drinkCost = 2;
 double tacoCost = 3;
 
 double totalCost = (numDrinks * drinkCost) + (numTacos * tacoCost);
 
 System.out.println("Total cost: $" + totalCost);
 }
}