Small knowledge points

1.equalsIgnoreCase

That is, case-insensitive comparisons.

2. StringBuffer Special class for stitching strings

No new objects are created during stitching

Append is the way to add a string

3. A class can be defined as a collection of data and methods

A variable directly written in a class is called a property of a class.

The method of a class is transformed by a dynamic feature.

In the same class, a class member is one that can directly access and invoke each other.

Class members refer to Methods and properties

Small knowledge points