Java中的简单重构（基础）

我有两个用于创建BankAccount的构造函数

    public BankAccount(int accountNumber , double balance) {
        // TODO Auto-generated constructor stub
        this.accountNumber = accountNumber;
        this.balance = balance;         
        System.out.println(this.accountNumber+"    "+this.balance);         
    }

    public BankAccount(int accountNumber) {
        // TODO Auto-generated constructor stub
        this.accountNumber = accountNumber;
        this.balance = 0;

        System.out.println(this.accountNumber+"    "+this.balance);
    }

我想重构它，并遵循

DRY

（不要重复自己）原则。我写了这个，但它引发了一个错误。。。请帮忙

public BankAccount(int accountNumber) {
        // TODO Auto-generated constructor stub
        BankAccount(accountNumber,0.0);
    }
        public BankAccount(int accountNumber , double balance) {
        // TODO Auto-generated constructor stub
        this.accountNumber = accountNumber;
        this.balance = balance;

        System.out.println(this.accountNumber+"    "+this.balance);

    }

使用

此

public BankAccount(int accountNumber) {
    this(accountNumber,0.0);
}

---

检查以下代码：

public class BankAccount {
    int accountNumber;
    double balance;
    public BankAccount(int accountNumber) {
        // TODO Auto-generated constructor stub
        this(accountNumber, 0.0);
    }

    public BankAccount(int accountNumber , double balance) {
        // TODO Auto-generated constructor stub
        this.accountNumber =accountNumber;
        this.balance = balance;

        System.out.println(this.accountNumber+"    "+this.balance);

    }
}

它编译得很好。您可以对构造函数使用

this

，因为它们不是方法