28. Integer and Double

• Constructors for the Integer and Double classes

  
      Integer(int)
      Double(double)
  
  

• Examples creating Integer and Double objects:

  
  Integer quantityIntegerObject = new Integer(quantity);
  Double priceDoubleObject = new Double(price);
  
  

• NOTE: In addition to the Integer and Double classes, all other primitive data types also have corresponding wrapper classes similar to Integer and Double.