为掷硬币创建类和方法

Question

I am doing a practice problem that deals with the flipping of a coin. I understand every other step, but I am confused at how to first setup the method and class. I am confused with the variables that they have given me. The question aks,

Define a class Coin with 2 instance data, a string face, which can be “heads” or “tails” and an int value that represents the monetary value of the coin. The following method should be included in the class: - a default constructor - a constructor that takes 2 parameters to initialize instance data

So my question to everyone is how would I go about creating this?

This is what I have so far:

public class Coin
{
    private int Value;
    private String Face;

    public Coin(int a)
    {
        Value = a;
        Face = "heads";
    }

    public Coin(int b, String faceTails)
    {
        Value = b;
        Face = "tails";
    }

Answer 1

From your requirements:

Define a class Coin with 2 instance data, a string face, which can be “heads” or “tails” and an int value that represents the monetary value of the coin. The following method should be included in the class:

• a default constructor:

An empty bean constructor needs to be defined in Java if there is a constructor that takes an argument, like so:

public Coin(){...}

• a constructor that takes 2 parameters to initialize instance data

You have this defined properly, but you may not need the constructor with 1 argument.

public Coin(int b, String face)
{
    this.value = b;
    this.face = face;
}

You may also want to add some getters for the field values so you can access the values from outside the class.