1、 Code and effect drawing
1. Package
Case: Requirement Description
Using encapsulation to realize penguin‘s correct input health value and intimacy of electronic pet system
Ensure the validity of health value (0-100), otherwise take the default value of 60
Otherwise, the value of intimacy is taken as 100-60
The code is as follows (example)
package work1;package work1;package work1;
2. Inheritance
Case: use inheritance to optimize the electronic pet system, extract the parent class, create the subclass, and use super to call the parent class construction method in the subclass.
The code is as follows (example)
package work3;package work3;package work3;package work3;
summary
The above is the content of encapsulation and inheritance case, mainly using the method of encapsulation and inheritance.
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