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.
A core is your old worn out (yet still rebuildable) engine or part that is required as a trade in when you purchase a remanufactured or sometimes a new one. An acceptable core or rebuildable core is one that is not broken, damaged beyond repair, or so severely cracked that is can no longer be machined back to proper working condition.