Pair of BNC to RJ45 CAT5 CAT6 Cable Passive Video +Audio Balun... VIMVIP HD-CVI/TVI/AHD Passive Video Balun with Power Connector and RJ45 CAT5 Data Transmitter 1 Pair by VIMVIP
The class loader concept, one of the cornerstones of the Java virtual machine, describes the behavior of converting a named class into the bits responsible for implementing that class. Because class loaders exist, the Java run time does not need to know anything about files and file systems when running Java programs.
If you do not write a constructor for a class, Java generates one for you. This generated constructor is called a default constructor. It's not visible in your code, but it's there just the same. If you could see it, it would look like this (for the class Dog): public Dog() { }.