public class App {

public static void main(String[] args) {
   
   }
}

// القسم الثاني : شرح انواع البيانات الذي يمكنك تخزينها في جافا
//------------------------------------------------------------------
// Part 2: Explain the types of data that you can store in Java
//------------------------------------------------ ------------------
// byte     1 byte	Stores whole numbers from -128 to 127  2*2*2*2*2*2*2
// short    2 bytes	Stores whole numbers from -32,768 to 32,767
// int      4 bytes  Stores whole numbers from -2,147,483,648 to 2,147,483,647
// long     8 bytes  Stores whole numbers from -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807
// float    4 bytes  Stores fractional numbers. Sufficient for storing 6 to 7 decimal digits
// double   8 bytes	Stores fractional numbers. Sufficient for storing 15 decimal digits
// boolean  1 bit	   Stores true or false values
// char     2 bytes	Stores a single character/letter or ASCII values

// Primitive types are predefined (already defined) in Java. Non-primitive types are created by the programmer
// and is not defined by Java (except for String). Non-primitive types can be used to call methods to perform certain operations, while primitive types cannot.
// A primitive type has always a value, while non-primitive types can be null.
// A primitive type starts with a lowercase letter, while non-primitive types starts with an uppercase letter.
// The size of a primitive type depends on the data type, while non-primitive types have all the same size.

//                        القسم اول : طريقة انشاء متغيرات في جافا
//------------------------------------------------------------------
//       القسم الثالث :شرح للقوانين انشاء اسماء متغيرات في جافا 
//------------------------------------------------------------------

// Part 1: How to create variables in Java 
//------------------------------------------------ ------------------
// Part 3: An explanation of the rules for creating variable names in Java