The difference between overload method and override method

Method overloading ： Is that multiple methods have the same method name , But respective parameters （ type 、 The order 、 Number ） Different ;

The return value types of general method overloads are the same （ If the return value types are different, method overloading will not be affected ）;

Method overloading accomplishes a similar function by inputting different parameters in a class .

Method rewriting ： In an inheritance relationship , If a subclass defines a method that has exactly the same signature as the parent method , It's called method rewriting

It's also called （ Cover ）（ overwrite ）;

Methods are usually written before rewriting @Override, Used to check whether the current method works with the compiler " rewrite ";

Method signature is different （ Method overloading ）, The method signature is the same and the return value type is the same （ Method rewriting ）

Method rewriting means that a subclass overwrites the methods of its parent class ;