Why it matters

i18n shapes truly global apps. Understanding matters for international deployment.

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The architecture

Java i18n: Locale, ResourceBundle, ICU4J.

User locale from request.

Java i18n stackLocale detectionfrom user contextResourceBundletranslated stringsICU4Jadvanced formattingBeyond translation: consider cultural conventions + regulatory requirements
i18n components.
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How it works end to end

Time zones: server UTC, display in user's TZ.

Number/currency: locale-aware formatting.

Cultural: date format, name order, address format.

Right-to-left languages: layout considerations.