12- Wildcards

Luidsprekere

• Speaker 1 0:03
• Speaker 2 0:36

1. 0:03

   Hoofstuk 1: A better way to solve the problem in the last video is by using a wildcard. 302s · Speaker 1

   A better way to solve the problem in the last video is by using a wildcard. So we go back to our utils class and replace this type argument with a question mark which is called the wildcard character. This wildcard represents an unknown typ…

2. 5:06

   Hoofstuk 2: It could be a string object, it could be a daytime object. 18s · Speaker 1

   It could be a string object, it could be a daytime object. That is the reason why when we use the super keyword, we can get an object from this list and store it in a variable of type object. So to recap, if you want to read from this list,…