Conversion of Integer to int, Double to double in Java(Data Type Conversion)

  Hi, This code will be very useful and help you in saving time while searching the code for the Datatype Conversion

Conversion of the Double to double 

 annualDemand = new Double(annualDemand.doubleValue()*2.0);

In the Above example,  annualDemand  is a Double datatype

Converting the annualDemand to double and performing a multiplication with 2.0 and converting back to Double.