5.22 面向对象案例分析四

构造一个银行账户类，类的构成包括如下内容:
1.数据成员用户的账户名称，用户的账户余额（private数据类型）
2.方法包括开户（设置账户名称及余额），利用构造方法完成
3.查询余额

class Account {
    private String name;
    private double balance;
    public Account(){}

    public Account(String name){
        this(name,0.0);
    }

    public Account(String name,double balance){
        this.name = name;
        this.balance = balance;
    }

    // setter,getter 略
    public double getBalance(){
        return this.balance;
    }

    public String getInfo(){
        return "账户名称:" + this.name + ",余额:" + this.balance;
    }

}

public class HelloWorld {
    public static void main(String[] args){
        Account account = new Account("王二麻",8000.00);
        System.out.println(account.getInfo());
        System.out.println(account.getBalance());
    }
    
}