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Java RMI

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Java RMI

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

Java RMI — RMI calls methods on remote objects.

Java RMI — I18N formats text/date/number for locales.

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

Use RMI 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. Java RMI — 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 RMI.

Exam tip

Explain Java RMI in: what → why → one API name.

Example

// Java RMI
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());
  }
}

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

Short notes

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

// Java RMI 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()); } }

Java RMI

Example

Short notes

Questions

Java RMI

Example

Short notes

Questions