Memory layout of primitives versus objects Using an approach similar to that of Glen McCluskey in “Java primitive types vs. wrappers,” the method shown in Listing 1 measures the number of ...

This would represent a number, which in turn ... These are referred to as “primitive data types” as they are built right into the functioning of Java and can’t be broken down any further.

The drawback to Java's default constructor is that its initializations are fairly meaningless: Reference types are initialized to null. Primitive number types are initialized to 0. Primitive boolean ...

and then performs a math operation on the converted value to prove that it behaves like a primitive long type and not a Java String. Each of these methods return a whole number that fits within the ...

Q: Is there a method in Java for determining the size of a primitive type, similar to C++’s sizeof operator? A: The short answer: you can’t find the size of a Java primitive type through a ...