13- Summary
Jun 20, 2026 07:36
· 0:55
· English
· Whisper Turbo
· 2 speakers
이 트랜스크립트는 다음에 만료됩니다. 24 며칠이요
영구 저장소 업그레이드 →
보이는 것만
0:03
S…
Speaker 1 (13- Summary)
Let's quickly recap what you learned in this section.
0:05
S…
Speaker 1 (13- Summary)
With generics,
0:06
S…
Speaker 1 (13- Summary)
we can create general purpose classes and methods that can work with different
0:11
S…
Speaker 1 (13- Summary)
types of objects.
0:12
S…
Speaker 1 (13- Summary)
Generics are very common in Java.
0:14
S…
Speaker 1 (13- Summary)
As you will see throughout this course,
0:15
S…
Speaker 1 (13- Summary)
a lot of built -in classes and interfaces in Java are generic.
0:19
S…
Speaker 2 (13- Summary)
Now,
0:19
S…
Speaker 1 (13- Summary)
when we compile a generic class,
0:21
S…
Speaker 1 (13- Summary)
the Java compiler will erase the generic type parameter and replace
0:25
S…
Speaker 1 (13- Summary)
it with an actual class.
0:26
S…
Speaker 2 (13- Summary)
By default,
0:27
S…
Speaker 1 (13- Summary)
it will use the object class unless we apply a constraint to a parameter.
0:31
S…
Speaker 1 (13- Summary)
We can apply a constraint using the extents keyword and this will ensure that we can
0:36
S…
Speaker 1 (13- Summary)
only use the given type or its subtypes as a generic type argument.
0:40
S…
Speaker 1 (13- Summary)
We also talked about wildcards.
0:42
S…
Speaker 1 (13- Summary)
With wildcards we can cast generic types.
0:44
S…
Speaker 1 (13- Summary)
So that's it.
0:46
S…
Speaker 1 (13- Summary)
In the next section I'm going to talk about collections and as you will see these collection
0:50
S…
Speaker 1 (13- Summary)
types are all generic.
0:51
S…
Speaker 1 (13- Summary)
So I'll see you in the next section.
This transcript was generated by AI (automatic speech recognition). May contain errors — verify against the original audio for critical use. AI policy
요약
요약 을 클릭하여 이 녹음의 AI 요약을 생성합니다.
요약...
이 녹음에 대해 AI에게 물어보기
이 녹음에 대해 질문하십시오 — AI는 관련 섹션을 찾아 답변합니다.