What is the difference between default constructors and parameterized type of constructors?

Question

Taking a program as an example would be grateful?

Answer 1

As @noname said, you can add values, arguements, parameters to a constructor.

say if you have a pizza class and you want to add cheese to each pizza created.

You set the function to add to be triggered by the constructor, so every pizza created has cheese.

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Answer 2

Constructors give objects initial values to its attributes, which are zero, empty strings and false by default. If a constructor is patametized you can choose initial values when you instance / initialize / create the object

Answer 3

Here is a code that I made using a constructor with parameters

edit here it is:

https://code.sololearn.com/ctW11V3p29WT/?ref=app