Skip to content

Menu

Community

Topics Categories Tags Members Leaderboard Badges About

Categories

Languages Data & databases Web & front end Systems & DevOps

Tags

javascript python concurrency css performance postgresql apache-spark arrays async-await asyncio

Loading…

Forum
Languages

Java: concurrent modification exception when removing from a list in a for-each loop

Dmitri Vasko · 1 reply · 720 viewsjava collections iterator

Dmitri Vaskoyesterday

Jonah Weissyesterday

Related topics

Vim: how do I exit without saving?2 replies
Rust: "borrowed value does not live long enough" when returning a &str from a function1 reply
Bash: loop over files with spaces in their names1 reply
TypeScript: type an object whose keys come from a union2 replies
PostgreSQL: query is slow even though the column is indexed4 replies
Async Python: run blocking code without freezing the event loop1 reply

Suggested topics

JavaScript: why does [1, 2, 10].sort() put 10 before 2?2 replies
Vim: how do I exit without saving?2 replies

Python: what is the difference between __str__ and __repr__?1 reply

Rust: "borrowed value does not live long enough" when returning a &str from a function1 reply

Bash: loop over files with spaces in their names1 reply

Solved by Jonah Weiss

Use removeIf: names.removeIf(String::isBlank); or an explicit Iterator and it.remove().

for (String s : names) {
    if (s.isBlank()) names.remove(s);
}

throws ConcurrentModificationException. How should I remove while iterating?

Use removeIf:

names.removeIf(String::isBlank);

or an explicit Iterator and it.remove().