what are the data types explain with its examples

Question

//Java Program to illustrate how to define a class and fields
//Defining a Student class.
class Student{
//defining fields
int id;//field or data member or instance variable
String name;
//creating main method inside the Student class
public static void main(String args[]){
//Creating an object or instance
Student s1=new Student();//creating an object of Student
//Printing values of the object
System.out.println(s1.id);//accessing member through reference variable
System.out.println(s1.name);
}
}

Answer 1

Welcome to Sololearn.
You can learn about Java types in the beginner course.
https://www.sololearn.com/learn/courses/java-introduction