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Four reference strengths, and what each one tells the collector. Strong is every reference you have written so far. Soft is cleared ...

The most failed generics question there is: why a list of veg meals is not a list of meals. Invariance first, and the widened write that ...

Course 2 opens the box. Your program gets two kinds of memory: the stack — one per thread, a frame per method call holding ...

Writing your own generic type. A type parameter is a slot filled at the call site: one Repository interface with two slots, one ...

Section 3 opens in Asha's kitchen at lunch rush: a thread is a cook, a task is an order. What a thread actually is — an object with a ...

The method's own type parameter: where it goes, what type inference actually reads (the argument types and the target type), and ...

How the collector decides what is garbage: reachability from the GC roots, not reference counting — which is why two objects ...

One shared counter and two threads. We look at the bytecode and find that the increment is four instructions, not one, then force ...

Forty-two units, and this course has never asked you a thing. Today the program asks and you answer: new Scanner(System.in), ...

The one fact the whole generics section is built on: generics live at compile time only. javac checks the type arguments and then ...

The heap has a ceiling and one flag sets it. We fill it under -Xmx16m and watch a real OutOfMemoryError: Java heap space arrive ...

Why a small, short-lived object can cost literally nothing. Tiered compilation: the interpreter runs bytecode and counts, C1 ...

Four keywords you meet on day one of a real codebase, and this course never named them. Asha's kitchen has four doors, not ...

The last unit, and the one about not needing me. One stack trace read all the way down — what, where, who called whom; the four ...

The bound is the part of the angle brackets that tells the compiler what your type must be able to do. Three shapes in order: an ...

A comment that repeats the code is noise; the one that says why saves a week. daysInMonth = 30 looks like a February bug and is ...

A char is a number you can do arithmetic on: (int) 'M' is 77, and 'm' minus 'M' is 32. The String methods you will type every week ...

Asha's family lunch is a box with boxes inside it, and Unit 09's loop cannot know how deep it goes. Recursion with the call stack ...

Asha dreams of 1200 franchise kitchens, and int hands her back minus 1796567296 without a word of warning. Every range ...

Welcome back to Fun Electronics! In this video, we are breaking down the I2C (Inter-Integrated Circuit) Communication Protocol.