问Java:从控制台运行的main失败，找不到主类

EN

Example A \
    - main\
        -- Main.java
    - vehicle\
        - barcos\
            --Barco.java
        - aviones\
            --Avion.java
        - automovil\
            --Coche.java

package vehicle.barcos;

public class Barco{
    private String marca;
    public String getMarca(){
        return this.marca;
    }
}

package vehicle.aviones;

public class Avion{
    private String marca;
    public String getMarca(){
        return this.marca;
    }
}

package vehicle.automovil;

public class Coche{
    private String marca;
    public String getMarca(){
        return this.marca;
    }
}

package main;
import vehicle.barcos.Barco;
public class Main{  
    public static void main(String[] args){
        Barco barco = new Barco();
    }
}

C:\Users\User\Desktop\OCA8Examples\02 - Packcages and imports\Example A>java main\Main
Error: no se ha encontrado o cargado la clase principal main\Main

C:\Users\User\Desktop\OCA8Examples\02 - Packcages and imports\Example A>java -classpath "C:\Users\User\Desktop\OCA8Examples\02 - Packcages and imp
orts\ExampleA" main\Main
Error: no se ha encontrado o cargado la clase principal main\Main