#call stack

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The Call Stack process

What the hack is the event loop?

Was just reading this array of Ruby-isms, and #11 caught my eye: the method Kernel#caller--it returns the current execution stack! Way cool.

The stack and the heap are the two basic memory areas available when running your Java programs. If you have been following my tutorial series, then you should understand that object instances are stored in heap memory. Most objects have instance variables and those instance variables live on the heap as part of the object. Also, I discussed that there is a special area of the heap called the string literal pool where certain String instances are stored. For the most part, method invocations and local variables are stored in the stack memory. The subject of Java memory management is complicated and certain details are beyond the scope of this tutorial, so I am going to provide you with a general idea of how the stack works. One other important thing to note is that stack memory is created and allocated to an individual thread; I haven't discussed the concept of multi-threading in programs, so don't worry about that just yet.

A co-worker and I debugging Visual Basic some years ago.