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Internationalization

Theory

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Internationalization

Internationalization: advanced Java API — know purpose + one use case. Internationalization: reflection inspects classes at runtime.

Internationalization — RMI calls methods on remote objects.

Internationalization — I18N formats text/date/number for locales.

Write one tiny example for Internationalization. Compile, print one result, and say the output out loud before you type.

Use Internationalization only when the problem needs it. Don’t force it into every program. Know one beginner trap.

Let's take this on the board with one tiny Main class — no extra files. Internationalization — output: English (on Locale.US) then today's date. Real I18N APIs — Locale + LocalDate. Start from main, go line by line, and stop at each print. That output is the proof for Internationalization.

Exam tip

Explain Internationalization in: what → why → one API name.

Example

// Internationalization
public class Main {
  public static void main(String[] args) {
    java.util.Locale locale = java.util.Locale.US;
    System.out.println(locale.getDisplayLanguage());
    System.out.println(java.time.LocalDate.now());
  }
}

Internationalization — output: English (on Locale.US) then today's date. Real I18N APIs — Locale + LocalDate.

Short notes

DefInternationalization is a Java idea you should explain with one small example.
RuleKnow the keyword / API used for Internationalization. Type a tiny Main and print one result.
RememberFor Internationalization, say the output before you code.
TrapInternationalization — only memorising the heading. No example, no trap.
Know the purpose
One real use case

// Internationalization public class Main { public static void main(String[] args) { java.util.Locale locale = java.util.Locale.US; System.out.println(locale.getDisplayLanguage()); System.out.println(java.time.LocalDate.now()); } }

Internationalization

Example

Short notes

Questions

Internationalization

Example

Short notes

Questions