Java Method overloading

1. Method overloads. Indicates that two or more names are the same, but the method parameters differ, and the method parameters have both sides meaning:
   

   1 different number of parameters

   2 parameter types are different

Note: The return value of a method has no effect on overloading

2. Overloading of the constructor method: Just look at the parameters, if you want to call another constructor method in a constructor method, you can use this () method call, this () parentheses in the parameter represents the target constructor method parameters, this () must be used as the first statement of the construction method, in other words, This () cannot have any executable code before

Java Method overloading