For instance, if there's one standout nugget of know-how in Kenji's treatise on chili, it's how salting beans before you cook them makes them especially plump and flavorful, and that they won't, contrary to popular belief, turn into little rocks. (He's also roasted them for super-meaty black bean burgers.
Core java refers to the core or basic concepts of the Java programming language. Things like encapsulation, inheritance, multi-threading, exception handling and other basic feature of java that comes as part of the Java standard edition forms Core Java.
Java is a strongly typed programming language. This means that every variable must have a data type associated with it. For example, a variable could be declared to use one of the eight primitive data types: byte, short, int, long, float, double, char or boolean. A good analogy for a variable is to think of a bucket.