Liferay Service Builder

Liferay has very good service builder
utility. We can specify our domain model in
a service.xml file and run an ant task. The
utility will create Java files, Hibernate files,
Service Builder
and service classes

• Service Builder is a RAD tool, we may
choose to use our own service framework
and layer instead

Liferay supports Web Services

Liferay supports Web Services :-

• JSON
• Hessian
• Burlap
• REST
• RMI
• Spring HTTP
• WSRP
• WebDAV

HashMap sort by key

HashMap map = new HashMap();

map.put("05", "500");
map.put("04", "400");
map.put("03", "600");
map.put("01", "100");

Object[] key = map.keySet().toArray();
Arrays.sort(key);

for (int i = 0; i < key.length; i++) {
System.out.println(map.get(key[i]));
}