ThreadEast
Technology trends / Juejin

After Writing Kotlin for So Long, Do You Really Understand in, out, and *?

View original Chinese title

写了这么久 Kotlin，你真的理解 in、out 和 * 吗？

Read original on JuejinChinese source · opens in a new tab
ThreadEast reading guide

The reader’s brief

Kotlin is a programming language; in, out, and * are syntax related to generic variance and projections.

The story

An English article summary is not available yet. Read the original on Juejin

Go to the source

Original articles & discussion

For the source’s own discussion, open the original above. No verified comment translations are available here yet.

Saved for later: Daily reading record · 2026-10-16Monthly reading archive

Ranking history & source details

First recorded Oct 16, 2026, 12:50 PM CST · latest Oct 16, 2026, 12:50 PM CST. Ranks reflect attention on each platform.

Retained daily observations
DayPlatformBest rankLast rank
2026-10-16Juejin#47#47
How rankings are collected

More technology trends

[Ended] From 9,999 to 8,999 yuan: Apple iPhone 18 Pro gets a 1,000-yuan national subsidy and 12 interest-free installments under a state interest subsidyTim Cook: Apple Intelligence Will Launch a Test Version in China by the End of the Month, Excluding AI SiriReports say Apple has sent invitations for October 28, with its first touchscreen MacBook, iPad mini 8, and M6 Mac reportedly on the way4499 → 3085 Yuan: Xiaomi REDMI K100 Pro Max Flagship Phone Gets an Official 11.11 Price Cut