在编译错误方面遇到麻烦

Question

我是Java的初学者，我正在研究一个课程。我还发现Java很难掌握，并且我在此编译错误时遇到了麻烦。这只是一个错误，这使我更加困惑，因为当我在其他地方使用变量时我没有得到一个错误。

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*错误 *

文件：d： programming project 2 product.java [line：47]

错误：NewComptype无法解析为变量

public class Product
{
  //Instance variables
  private String name; //Name of Product
  private String compType; //Type of Product
  private double price; //Price of Product
  private int quantity; //How many computers
  //Constructors
  public Product()
  {
    name = "Dell";
    compType = "Laptop";
    price = 200;
    quantity = 1;
  }
  public Product(String newName, String newCompType, double newPrice, int newQuantity)
  {
    name = newName;
    compType = newCompType;
    price = newPrice;
    quantity = newQuantity;
  }
  //Instance methods
  public void printData()
  {
    System.out.println("Name of computer: " + name);
    System.out.println("Type of computer: " + compType);
    System.out.println("Number of computers: " + quantity);
    System.out.println("Cost of computer: " + price);
  }
  public void setName(String newName)
  {
    name = newName;
  }
  public String getName()
  {
    return name;
  }
  public void setCompType(String setCompType)
  {
    compType = newCompType;
  }
  public String getCompType()
  {
    return compType;
  }
  public void setPrice(double newPrice)
  {
    price = newPrice;
  }
  public double getPrice()
  {
    return price;
  }
  public void setQuantity(int newQuantity)
  {
    quantity = newQuantity;
  }
  public int getQuantity()
  {
    return quantity;
  }
   public String toString(){
   return name + " " + compType + " " + quantity + " " + price + "n";
 }
}

Answer 1

in：

public void setCompType(String setCompType) {
    compType = newCompType; // <-- should be setCompType instead of newCompType
}