1. Syntax & Semantics UML - Java

2. Syntax Java has textual syntax.
From Wikipedia, the free encyclopedia: “…the syntax of a computer language is the set of rules that defines the combinations of symbols that are considered to be a correctly structured document or fragment in that language.”
Java has textual syntax.
The If-sentence bellow is syntactically correct:
First code word if followed by token ( , etc. …
int age = 10;
if (age >70){
System.out.println(“Can be retired!");
} else {
System.out.println("Can not be retired!"); }

3. UML Has a Vusuall Syntax (and also a textual one)
If sentence in an activity diagram:
[age>70]
Print: «Can be retired!»
age = 10
[else]
Print: «Can not be retired!»

4. Semantics
The study of meanings. Used to differentiate the meaning of an instruction from its format.
int age = 10;
if (age >70){
System.out.println(“Can be retired!");
} else {
System.out.println("Can not be retired!"); }
Semantics of the if-sentence: If the boolean expression evaluates to true then execute what is between { and }...
Here the symbol function
as a merge (i.e., not an if)
[age>70]
Print: «Can be retired!»
age= 10
[else]
Print: «Can not be retired!»
The samantics of a branch is the «same as» the if sentence.

5. Code Generation Semantics of UML constructions expressed with Java expressions
package Journal.model;
public class Person {
private String firstName;
private String lastName; }
package Journal.model;
public class Patient extends Person{
private PatientFile has; }
package Journal.model;
public class PatientFile{
private java.util.List<PatientRecord> contains;
private Patient concerns; }

6. MagicDraw: UML  Java public class PatientFile{
private java.util.List<PatientRecord> contains;...
7/2/2018

7. Operations  Method public class Person { private String firstName;
private String lastName;
public String getName( ){
return null; }
public void setName( String name ){

8. This was problematic in MagicDraw
This was problematic in MagicDraw. Did some reverse engineering to get this in place...
package Journal.controller;
import Journal.model.PatientFile;
public class JournalApp {
private java.util.List<PatientFile> patientFiles;
public static void main( String[] args ){ }

9. MagicDraw - I Meny velg: Tools/Generate Code/Java

10. Software Engineering
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