方法的定义应用

 

 // 1.定义其属性和方法
    public int id;
    public String userName;
    public int password;
    public String packageConsumptionName;
    public double monthlyConsumption;
    public double accountBalance;
    public double callDuration;
    public int  textingNumber;
    public double netFlow;

    public void showCard(){
        System.out.println("卡号为："+id);
        System.out.println("用户名为："+userName);
        System.out.println("密码为："+password);
        System.out.println("所属套餐名称为："+packageConsumptionName);
        System.out.println("当月消费金额为："+monthlyConsumption);
        System.out.println("账户余额为："+accountBalance);
        System.out.println("实际通话时长为："+callDuration);
        System.out.println("实际发送短信数为："+textingNumber);
        System.out.println("实际上网流量为："+netFlow);
    }