3- Anonymous Inner Classes

Jun 26, 2026 22:49 · 1:23 · English · Whisper Turbo · 2 Sprekers
Dit transcript verloopt vandaag. Upgrade voor permanente opslag →
Lezingenindex
Uitsluitend tonen
0:03
S… Speaker 1 (3- Anonymous Inner Classes)
So in the last video we passed a new instance of our console printer
0:07
S… Speaker 1 (3- Anonymous Inner Classes)
class to a Greek method As I told you sometimes we don't want to explicitly
0:11
S… Speaker 1 (3- Anonymous Inner Classes)
create a class to implement an interface Perhaps we want to implement an
0:15
S… Speaker 1 (3- Anonymous Inner Classes)
interface only once and use it for a single purpose We don't want to reuse
0:19
S… Speaker 1 (3- Anonymous Inner Classes)
that class.
0:20
S… Speaker 1 (3- Anonymous Inner Classes)
So that's where we use anonymous inner classes So
0:25
S… Speaker 1 (3- Anonymous Inner Classes)
instead of creating a new instance of the console printer class here
0:29
S… Speaker 1 (3- Anonymous Inner Classes)
we can type new
0:31
S… Speaker 2 (3- Anonymous Inner Classes)
printer.
0:31
S… Speaker 1 (3- Anonymous Inner Classes)
So we type the name of the interface and press enter.
0:34
S… Speaker 1 (3- Anonymous Inner Classes)
What we have here is called an anonymous inner
0:38
S… Speaker 1 (3- Anonymous Inner Classes)
class.
0:39
S… Speaker 1 (3- Anonymous Inner Classes)
It's anonymous because this class doesn't have a name.
0:42
S… Speaker 1 (3- Anonymous Inner Classes)
It's just an implementation and we call it an inner class because we're
0:46
S… Speaker 1 (3- Anonymous Inner Classes)
using this inside a method.
0:48
S… Speaker 1 (3- Anonymous Inner Classes)
Okay, so in this class we're
0:52
S… Speaker 1 (3- Anonymous Inner Classes)
implementing the print method.
0:53
S… Speaker 1 (3- Anonymous Inner Classes)
Here we can use a print statement to print this
0:58
S… Speaker 1 (3- Anonymous Inner Classes)
message.
0:58
S… Speaker 1 (3- Anonymous Inner Classes)
Now when we run this program
1:02
S… Speaker 1 (3- Anonymous Inner Classes)
we get the exact same result.
1:03
S… Speaker 1 (3- Anonymous Inner Classes)
So this is how we can use an anonymous inner class.
1:07
S… Speaker 1 (3- Anonymous Inner Classes)
With anonymous inner classes,
1:09
S… Speaker 1 (3- Anonymous Inner Classes)
we can achieve the same result by writing less code.
1:12
S… Speaker 1 (3- Anonymous Inner Classes)
But Java 8 introduced a better and more concise way to achieve
1:16
S… Speaker 1 (3- Anonymous Inner Classes)
the same result.
1:17
S… Speaker 1 (3- Anonymous Inner Classes)
That's called a lambda expression and we're going to look at that next.

Dit transcript werd gegenereerd door AI (automatische spraakherkenning). Kan fouten bevatten..verifieer tegen de oorspronkelijke audio voor kritisch gebruik. AI-beleid

❤️ Hou je van STT.ai? Vertel het je vrienden!
Samenvatting
Klik op Summarize om een AI samenvatting van dit transcript te genereren.
Samengevat...
Vraag AI over dit Transcript
Vraag maar iets over dit transcript De AI zal relevante secties en antwoord vinden.
Een andere transcriberen