Hutool 3.9.x is a legacy version (last updated ~2018). For new projects, use Hutool 5.x or 6.x . This document is for reference or maintenance of old systems.

The next time you write a for loop to join strings, or a try-catch to parse a date, stop yourself. Ask: “Which of the 39 methods does this?”

New methods in the Assert class allow for cleaner code when asserting that a given collection is empty.

Hutool 39 ((free)) ❲2025-2027❳

Hutool 3.9.x is a legacy version (last updated ~2018). For new projects, use Hutool 5.x or 6.x . This document is for reference or maintenance of old systems.

The next time you write a for loop to join strings, or a try-catch to parse a date, stop yourself. Ask: “Which of the 39 methods does this?” hutool 39

New methods in the Assert class allow for cleaner code when asserting that a given collection is empty. Hutool 3