content: // BoilerPlate Code
  
  public class JavaBasics {
      public static void main(String args[]) {
          /* System.out.println("Hlw World,");
          System.out.println("This is my first code of Java.");      
          System.out.print("This code is running perfectly.");
  
          System.out.print("Hlw World, \n This is my first code of Java. \n This code is also running perfectly."); */
  
          // Print 4 pattern
  
          /* System.out.println("****");
          System.out.println("***");
          System.out.println("**");
          System.out.println("*");
          System.out.print("@ \n @@ \n @@@ \n @@@@"); */
  
          // Variables in Java;
  
          /* int a = 10;
          System.out.println(a);
          int b = 5;
          System.out.println(b);
          String Name = "Alt Mash";
          System.out.println(Name);
          a = 50;
          System.out.print(a);
          a = b;
          System.out.print(a); */
  
          // Data types in Java;
  
          /* byte b = 8;
          System.out.println(b);
          short s = 240;
          System.out.println(s);
          char ch = 'a';
          System.out.println(ch);
          boolean var = true;
          System.out.println(var);
          int number = 25;
          System.out.println(number);
          long car = 1000000;
          System.out.println(car);
          double dec = 0.012548;
          System.out.println(dec);
          float price = 10.5f;
          System.out.println(price); */
  
          // Sum of a & b
          /* int a = 10;
          int b = 5;
          int sum = a + b;
          System.out.print(sum); */
  
          // Product of a & b
        /* int a = 10;
          int b = 5;
          int product = a * b;
          System.out.print(product); */
      }
  }