The document discusses the Groovy programming language. It provides an overview of Groovy, including how it runs on the Java Virtual Machine and interoperates with Java. Examples are given showing how a simple "Hello World" program looks in Java and Groovy. Additional topics covered include Grails, Gaelyk, Gradle, and popular Groovy libraries. Meeting information is provided for the Japanese Groovy and Grails User Group.

1. 2011/08/20

2. 
◦

◦ Java/Flex/ActionScript
 E-mail:toby55kij@gmail.com
 Twitter:toby55kij
2011/08/20

3.  Groovy
◦
2011/08/20

4.  JavaVM
◦ :1.8.1
◦ http://groovy.codehaus.org/
2011/08/20

5.  Java
◦ Java Groovy
◦ Java JAR
◦ Java
 Java
◦ , ,…
◦ JDK Groovy JDK(GDK)
◦
 XML,JSON,Swing,…
2011/08/20

6.  Grails
◦ Web
 Gaelyk
◦ GAE/J
 Gradle
◦
 GroovyServ
◦

◦ GPars,Griffon,GroovyFX,…
2011/08/20

7. 2011/08/20

8. Hello.java:
public class Hello {
public static void main(String[] args) {
System.out.println("Hello, World!");
}
}
2011/08/20

9. Hello.groovy:
public class Hello {
public static void main(String[] args) {
System.out.println("Hello, World!");
}
}
→Java Groovy
2011/08/20

10. Hello.groovy:
public class Hello {
public static void main(String[] args) {
System.out.println("Hello, World!");
}
}
→
→
2011/08/20

11. Hello.groovy:
public class Hello {
public static void main(String[] args) {
System.out.println "Hello, World!"
}
}
→
2011/08/20

12. Hello.groovy:
System.out.println "Hello, World!"
→Object println()
2011/08/20

13. Hello.groovy:
println "Hello, World!"
2011/08/20

14.  Grails/Groovy (JGGUG)
◦
◦ http://www.jggug.org/
 G*
◦ 9/16
◦ G* GUI
 Griffon,GroovyFX
2011/08/20