我会首先使用更改方法签名重构（mac上的选项+命令+ c）将额外参数添加到构造函数中。这样，调用构造函数的现有代码可以将合理的默认值作为参数传递（如果您愿意）。然后按CTRL + 1选择多次，以便按照建议将新字段快速修复到课程中。

I would use the "change method signature" refactoring first (option+command+c on mac) to add the extra parameter(s) to the constructor. This way existing code that calls the constructor can pass sensible default as parameters (if you like). Then choose as many times CTRL+1 to quick fix the new fields into the class as you suggested.