重载3个不同版本的max方法和min方法，这些方法均有4个参数，分别用来求4个int、4个long、4个float数的最大值和最小值。编写Java应用程序，使用这些方法。-Overloaded three different versions of the Max method and min method, these methods all have four parameters, respectively for four to int, four long, 4 a number of float the maximum and the minimum. Writing Java applications, the use of these methods.