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import java.util.ArrayList;
import java.util.List;
import java.util.Scanner;
 
 
public class Ferry {
 
	public static void main(String[] args)
	{
 
		Scanner input = new Scanner(System.in);
		int numberOfTestcases = input.nextInt();		
		double ferryLength = input.nextInt();
		int numberOfCars = input.nextInt();
		double carLength = input.nextInt();
		String carStartSide = input.next();
 
		List<Car> ferry = new ArrayList<Car>();
		Car cr = new Car();
		ferry.add(cr);
 
		List<Car> boatArray = new ArrayList<Car>();
 
		double lengthCarOnFerry = 0;
		int count = 0;
 
		while(true)
		{
			if((count % 2) == 0) // You are on the left side
			{
				for(int i = 0; i < ferry.size(); i++)
				{
					if(lengthCarOnFerry <= ferryLength && cr.getSide() == "left") // If any car are on the left side
					{
						if(ferry.size() > numberOfCars)
						{
							throw new IllegalArgumentException();
						}
						else
						{
							boatArray.add(ferry.get(i)); // Add it to the boatarray
							break;
						}
					}
 
				}
			}
 
			else // You are on the right side
			{
				for(int i = 0; i < ferry.size(); i++)
				{
					if(lengthCarOnFerry <= ferryLength && cr.getSide() == "right") // If any car are on the right side
					{
						boatArray.add(ferry.get(i)); // Add it to the boatarray
					}
 
				}
 
				break;
			}
 
			count++;
		}
 
		System.out.println(count);
	}
 
}
 

Main.java:6: error: class Ferry is public, should be declared in a file named Ferry.java
public class Ferry {
       ^
Main.java:18: error: cannot find symbol
		List<Car> ferry = new ArrayList<Car>();
		     ^
  symbol:   class Car
  location: class Ferry
Main.java:18: error: cannot find symbol
		List<Car> ferry = new ArrayList<Car>();
		                                ^
  symbol:   class Car
  location: class Ferry
Main.java:19: error: cannot find symbol
		Car cr = new Car();
		^
  symbol:   class Car
  location: class Ferry
Main.java:19: error: cannot find symbol
		Car cr = new Car();
		             ^
  symbol:   class Car
  location: class Ferry
Main.java:22: error: cannot find symbol
		List<Car> boatArray = new ArrayList<Car>();
		     ^
  symbol:   class Car
  location: class Ferry
Main.java:22: error: cannot find symbol
		List<Car> boatArray = new ArrayList<Car>();
		                                    ^
  symbol:   class Car
  location: class Ferry
7 errors

Standard output is empty