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 usually the basic computation unit of the CPU-it can run a single program context (or multiple ones if it supports HW threads such as hyperthreading on intel CPUs), maintaining the correct program state, registers, and correct execution order, and performing the operations through ALUs.