标签:code param cto androi type word const 实体类 follow
今天在学习android数据库,运行程序的时候报错,错误是:Entities and POJOs must have a usable public constructor. You can have an empty constructor or a constructor whose parameters match the fields (by name and type).Tried the following constructors but they failed to match:
Word(java.lang.String,java.lang.String) -> [param:english_word -> matched field:unmatched, param:chinese_meaning -> matched field:unmatched]。
解决方法:在实体类写一个空的构造函数即可。
因为我有一个有参的构造函数,于是我写了一个空的构造函数即可运行。
写一个空的构造函数:
运行成功:
android--------解决Entities and POJOs must have a usable public constructor
标签:code param cto androi type word const 实体类 follow
原文地址:https://www.cnblogs.com/yangxiao-/p/12268447.html