16- The UnaryOperator Interface

Jul 01, 2026 04:06 · 1:13 · English · Whisper Turbo · 2 스피커

이 증명서는 오늘 만료됩니다. 영구 저장소 업그레이드 →

강의 색인

0:03

S… Speaker 1 (16- The UnaryOperator Interface)

The last functional interface we're going to talk about is the unary operator.

0:07

S… Speaker 1 (16- The UnaryOperator Interface)

As you can see,

0:08

S… Speaker 1 (16- The UnaryOperator Interface)

this interface extends the function interface.

0:11

S… Speaker 1 (16- The UnaryOperator Interface)

So a unary operator is a function that takes an argument

0:15

S… Speaker 1 (16- The UnaryOperator Interface)

of type t and returns a value of type t.

0:17

S… Speaker 1 (16- The UnaryOperator Interface)

So let's see how we can use this interface.

0:20

S… Speaker 1 (16- The UnaryOperator Interface)

I'm going to declare a unary operator of

0:24

S… Speaker 1 (16- The UnaryOperator Interface)

integer called square and set it to a lambda expression

0:28

S… Speaker 1 (16- The UnaryOperator Interface)

like this.

0:28

S… Speaker 1 (16- The UnaryOperator Interface)

n goes to n times n.

0:31

S… Speaker 1 (16- The UnaryOperator Interface)

We can declare another unary operator

0:34

S… Speaker 1 (16- The UnaryOperator Interface)

of type integer and call it increment and

0:39

S… Speaker 1 (16- The UnaryOperator Interface)

set it to a lambda like this,

0:40

S… Speaker 1 (16- The UnaryOperator Interface)

n goes to n plus 1.

0:42

S… Speaker 2 (16- The UnaryOperator Interface)

So,

0:43

S… Speaker 1 (16- The UnaryOperator Interface)

first we can increment a value and then we can

0:48

S… Speaker 1 (16- The UnaryOperator Interface)

get the square of the result.

0:49

S… Speaker 1 (16- The UnaryOperator Interface)

Now,

0:50

S… Speaker 1 (16- The UnaryOperator Interface)

let's apply the sequence on 1.

0:53

S… Speaker 1 (16- The UnaryOperator Interface)

So we're going to increment 1,

0:55

S… Speaker 1 (16- The UnaryOperator Interface)

we get 2,

0:55

S… Speaker 1 (16- The UnaryOperator Interface)

the square of 2 is 4.

0:57

S… Speaker 1 (16- The UnaryOperator Interface)

Let's get the result and print it to

1:01

S… Speaker 1 (16- The UnaryOperator Interface)

verify that our sequence of operations are working.

1:05

S… Speaker 1 (16- The UnaryOperator Interface)

There you go.

1:06

S… Speaker 1 (16- The UnaryOperator Interface)

So this is how we can use the unary operator in

1:10

S… Speaker 1 (16- The UnaryOperator Interface)

Java

이 기록은 AI (자동 음성 인식)에 의해 생성되었습니다. 오류가 있을 수 있습니다 - 중요한 사용을 위해 원본 오디오와 확인하십시오. AI 정책

❤️ STT.ai가 마음에 드시나요? 친구들에게 알려주세요!

요약

요약 을 클릭하여 이 녹음의 AI 요약을 생성합니다.

이 녹음에 대해 AI에게 물어보기

이 녹음에 대해 질문하십시오 — AI는 관련 섹션을 찾아 답변합니다.

다른 변환