If a method takes three parameters and you need to pass a fourth — should you overload or override the method?

If a method takes three parameters and you need to pass a fourth, the correct approach is to overload the method, that is, create a new version of the method with a different set of parameters. Overriding is replacing the implementation of a method in a subclass, but the method signature usually does not change.

Example in Java:

class Example {
    void method(int a, int b, int c) {
        // implementation
    }
    
    void method(int a, int b, int c, int d) {
        // new implementation with 4 parameters
    }
}