Methods 创建构造函数

我有一些代码需要帮助。我是AP CS的学生（这是介绍性的），所以请不要评判我

// name:  
    //
    // program:  CoinsTester
    //
    // purpose: 

    public class CoinsTester {



         public static void main(String[] args) {
     //create a new Coins object named money and pass it the amount of cents as a parameter
  //***** STUDENTS NEED TO COMPLETE ******
      Coins(); 
      Coins money = new Coins(); 

        // call the correct method in the Coins class to find your answer
  //***** STUDENTS NEED TO COMPLETE ******
        money.calculate(); 


    }

}



// name:  
//
// program:  CoinsTester
//
// purpose: This class accepts a certain number of monetary change.
//         The output is a list of the number of quarters, dimes, nickels,
//    and pennies that will make that amount of change with the least
//    number of coins possible.  This is a skeleton that will be finished 
//       by the students

    public class Coins {

 //private variable to store the only attribute of a "Coins" object - how many cents the 
 //    user wants to find change for. 
 private int myChange;

 //constructor that accepts an initial value for the private data member
 public Coins(int change) {
  myChange = change;
 } 

     // the method calculate will 
     // 1. use modular and regular division to determine the quantity of each type of coin
     // 2. prints the quantity of the coins needed to make the entered amount 
      public void calculate(){
      int quarters=25, dimes=10, nickels=5, pennies=1;
      int temp1, temp2, temp3, temp4; 
      int remainquar1, remaindime2, remainnick3, remainpenn4; 

        //variable declarations to hold the values needed for different coin types
        // make sure you use descriptive identifiers!
       //***** STUDENTS NEED TO COMPLETE ******

       // calculations for the various coin types
       //***** STUDENTS NEED TO COMPLETE ******


      // output statements, formatted as shown on specs  
       //***** STUDENTS NEED TO COMPLETE ******

      }   

     }

---

事情是这样的，我为我不正确的代码格式道歉。所以当我运行它时，它说Coins money=newcoins（）找不到代码的构造函数。我需要帮助创建一个合适的对象。这里的问题是，我必须为“CoinsTester”创建一个对象，然后它告诉我我没有链接到该对象的构造函数。我现在真的找不到解决办法。有人能告诉我如何为CoinsTester类创建构造函数吗

添加一个名为CoinsTester的“方法”（如果您需要类CoinsTester的构造函数，您的Q不清楚您需要什么构造函数）。如果希望使用添加的显式构造函数，请确保参数与调用序列相对应。

有两行需要检查：

Coins(); 

这将调用名为Coins的方法，而不是构造函数。我建议你删除这个，因为你很可能不会使用/需要它

Coins money = new Coins(); 

没有与此链接的构造函数的原因是您已经有了硬币的构造函数：

public Coins(int change) {
    myChange = change;
} 

创建此构造函数时，删除了默认构造函数newcoins（）。如果您希望能够在没有参数的情况下使用Coins构造函数，可以再次声明它。下面是一个例子：

public Coins() {
    myChange = 0;
} 

---

我该如何再次申报？用铸币厂还是用硬币？是否只是重新声明了“public Coins（）{myChange=0；}”您将在public类Coins中声明public Coins（）构造函数。然后，在铸币商的主要方法中，您只需使用硬币money=newcoins（）；线路。