它说我有非法字符，但我不知道如何解决这个问题

Question

public final class Hw7pr2

{

public static void main(String[] args)

     {

System.out.println(“Starting …….”);

Scanner scan =new scanner(system.in);

    log("Starting...");

     Pet pet = new Pet();

     work_like(pet);         

     pet = new Fish();

     work_like(pet);    

     pet = new dog();

     work_like(pet);    

     pet = new cat();

     work_like(pet);    

     log("Done.");

}

public static void work_like(Pet aPet)

{    aPet.walk();

}

private static class Pet

{

Public:

Char name[10], color[10];

    void prop()

   {

log("pet is: ");

system.out.println(“enter Name and color of pet”);

name=scan.nextchar();

color =scan.nextchar();

    }

}

private static final class Fish extends Pet

{

    @Override void prop()

    {

log("pet is fish...");

System.out.println(“Pet is fish”);

           }

}

private static final class dog extends Pet

   {

Char breed;

Int weight;

    @Override void prop()

       {

log("Pet is Dog ");

system.out.println(“Enter the breed”);

breed =scan.nextchar();

system.out.println(“Enter weight of the dog”);

weight=scan.nextchar();

       }

}

private static final class cat extends Pet

   {

Char coat;

    @Override void prop()

       {

log("Pet is cat");

system.out.println(“Enter Name and color of pet”);

coat =scan.nextchar();

       }

}

private static void log(String aMessage)

   {

    System.out.println(aMessage);

}

}

它一直说我有很多非法角色，但我不知道那是什么，有人可以帮助我吗？

Answer 1

如果您从MS Word复制了该行，则该行看起来不对（点）：

System.out.println(“Starting …….”);