Java class is the basic building block of Java programming language. Java class is a template that is used to create objects, and to define data types and methods.Java class objects should have the basic class properties.

Syntax:

class <class-name>
{
 [data members];
 [methods];
 }

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https://www.c-sharpcorner.com/article/a-complete-java-classes-tutorial/

A class is declared by use of the class keyword. Class body is enclosed between curly braces { and }. The data, or variables, defined within a class are called instance variables. The code is contained within methods. Collectively, the methods and variables defined within a class are called members of the class.

Default modifier is friendly.

Syntax

class

{

body

}