If you’re still not sure how this works, consider the following diagram: Rafael Del Nero Passing primitive types in Java. Like object types, primitive types are also passed by value.

Get the source code for this article, “Type dependency in Java, Part 1.” Created for JavaWorld by Dr. Andreas Solymosi.

When this default constructor example code runs, ... 0.0 . As you can see, the integer types are set to 0, decimal types are set to 0.0, Boolean values are set to false, and reference types are set to ...

It means that on newer JDKs, a wrapper class will be created automatically when a primitive type is used anywhere a reference type is expected. As such, on post JDK 1.5 versions of the JVM, the ...