By convention, Java type names usually start with an uppercase letter
2018-01-16 14:31
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Eclipse在，在新建class的时候，上方黄色警告，如图：
uppercase：大写字母
如果能看到英文，就可以很快的知道这句黄色警告的意思，翻译过来是：类的名字不被支持，按照惯例，java类的名字通常以大写字母开头。
java类的名字首字母要大写
这里把Name改为HelloWordActivity即可
uppercase：大写字母
如果能看到英文，就可以很快的知道这句黄色警告的意思，翻译过来是：类的名字不被支持，按照惯例，java类的名字通常以大写字母开头。
java类的名字首字母要大写
这里把Name改为HelloWordActivity即可
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