All states have minimum certification standards for being appointed as a law enforcement officer. The level and expertise of the training may vary depending on the size and finances of the department...
The classes, or castes, of ancient India were the brahmins, kshatriyas, vaisyas and sudras. The brahmins were the priest class, the kshatriyas the ruler and warrior class, the vaisyas the merchants,...
Oddly enough, there is a Java class named Class. It provides an easy way to tell if two unknown Objects are of the same type (through use of the Object.class method).