1、首先准备两个类（苹果类，可以一个苹果颜色的枚举）1. public class Apple { 2. // 名字 3. private String name; 4. // 重量 5. private double weight; 6. // 颜色（枚举类） 7. private Color c...

Java中包装类、int和String类型相互转换、自动拆箱和自动装箱及字符串数据排序案例

一、基本类型包装类基本类型包装类的作用：将基本数据类型封装成对象的好处在于可以在对象中定义更多的功能方法操作该数据常用的操作之一：用于基本数据类型与字符串之间的转换基本类型对应的包装类：基本数据类型包装类byteByteshortShortintIntegerlongLongfloatF...

那位大神，给一个java版的flink1.7 读取kafka数据，做实时监控和统计的功能的代码案例。

那位大神，给一个java版的flink1.7 读取kafka数据，做实时监控和统计的功能的代码案例。网上的URL也行，谢谢！本问题来自阿里云开发者社区的【11大垂直技术领域开发者社群】。点击这里欢迎加入感兴趣的技术领域群。

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