A summary of the second week of self-study Java

This week I learned Java objects and classes on the Internet, and I learned about objects and classes and simple usage. An object is an instance of a class ( objects are not looking for a girlfriend ), stateful and behavioral. For example, a dog is an object whose state is: color, name, variety, behavior: wagging the tail, barking, eating, etc. A class is a template that describes the behavior and state of a class of objects. In addition, I learned and learned about modifiers, the Java language provides a number of modifiers, mainly divided into the following two categories: access modifiers and non-access modifiers, of course, I also remember some of its usage. At the same time I also learned the point of order structure of the program statement. If you want the same operation to execute multiple times, you need to use the loop structure. There are three main loop structures in Java: While loop,do...while , loop for loop.

The main problem this week was that I could not get a better understanding of some of the knowledge points and not be able to use them skillfully, and I will start learning and applying new knowledge next week.

A summary of the second week of self-study Java