Update main_within_class.java

Author: prasadbylapudi

model/main_within_class.java

@@ -1 +1,16 @@
 
+//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);  
+ }  
+}