java - 编译错误: variable may not have been initialized

Question

所有-我已经看过很多与此类似的问题，但似乎无法解决我的问题。我的问题是，在 if 语句外部声明但在 if 语句内部初始化的变量不会被与其定义的同一范围内的变量识别。这是我的代码:

  String lastP1Boa; //Declared here

if (ownersBoa == message) {
    Spinner houseBoa = (Spinner) findViewById(R.id.houseBoa);
    String housesBoa = houseBoa.getSelectedItem().toString();
    Integer lastIntHouseBoa = Integer.parseInt(housesBoa.replaceAll("[\\D]", ""));

    Spinner hotelBoa = (Spinner) findViewById(R.id.hotelBoa);
    String hotelsBoa = hotelBoa.getSelectedItem().toString();
    Integer lastIntHotelBoa = Integer.parseInt(hotelsBoa.replaceAll("[\\D]", ""));


    int intLastP1Boa = lastIntHotelBoa * 1500 + lastIntHouseBoa * 100;
    lastP1Boa = String.valueOf(intLastP1Boa);  } //Initialized here



String p1Total = lastP1Boa; //Error saying that lastP1Boa needs it be initialized  

感谢大家抽出宝贵的时间，希望我已经说清楚了!

Answer 1

编译器报告的问题是 if (ownersBoa == message) 的计算结果有可能为 false 和 lastP1Boa不会被初始化。在声明它的地方将其设置为等于 null(或更合适的默认值)。

String lastP1Boa = null; //Declared here