public公有的private私有的protected保护的class类类型
void空白无返回值static静态的final最终的String字符串int整数类
型long长整型double双倍双精度浮点数float浮动浮点数
boolean布尔类型byte字节bit位Binnary二进制short短的16位整数
char字符字符类型name姓名phone电话email电子邮件windowsw...
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