About Java StringBuilder class

Is it correct to understand that the "class" of the StringBuilder class is a function that comes standard with Java?

Also, I would like to know if it is a different term from the class that means "an object that summarizes the processing for executing a program".

Sorry for the poor post.

Recommended Posts

About Java StringBuilder class
About Java class
[Java] About Singleton Class
About Java String class
About java abstract class
About Java class loader types
[Java] About String and StringBuilder
About Java class variables class methods
StringBuffer and StringBuilder Class in Java
java Scanner class
Java HashMap class
[Java] About arrays
About class inheritance.
java (abstract class)
Something about java
Where about java
About Java features
Java anonymous class
About Java threads
[Java] About interface
About Java arrays
About java inheritance
About interface, java interface
[java] abstract class
Java local class
About java var
About Java literals
About Java commands
About Java method binding
[Java] About anonymous classes
About method splitting (Java)
Java inner class review
[Java Silver] About initialization
About Java Array List
About Java Polymorphism super ()
[Swing] About JFrame class
Java class type field
About inheritance (Java Silver)
Java programming (class method)
About Java access modifiers
About Java lambda expressions
About Java entry points
About Java 10 Docker support
Personal summary about Java
About sorting java.util.Arrays class
Java programming (class structure)
All about Java programming
Java --StringBuilder vs StringBuffer
[Java] Handling of character strings (String class and StringBuilder class)
[Java] Integer wrapper class reference
What I researched about Java 6
[Gradle] About Java plug-in tasks
Java inflexible String class substring
Java memo (standard class) length
About Java variable declaration statements
What I researched about Java 9
[Implementation] Java Process class notes
How to use java class
[Java] Comparator of Collection class
Java class definition and instantiation
[Java Silver] About equals method