Answer / venkateshk

If private constructor is written in a class is preventing
to create objects for the class from outside of class.

Answer / naveen.bav

It will become singleton

Answer / srikanth

we cant create instance for that class

Answer / diego antonio

Yes! You can!

1.- You could have serveral constructors by requesting
different parameters set: if any of them is public, you can
use it.

2.- you could have an static method (which does not need
instance of the class) named, by example,
getNewInstance(...) which internally uses the private
constructor to instance a class (as in the factory pattern),
or as in the Singleton pattern to get the only one instance
(private and static instance).

3.- If several constructors exists, the private ones could
be called from others, but never used externally to the
class implementation.

Answer / gopikrishna

you can't create instance for that class

Answer / ravi kumar

If we write the private constructor, it is not possible to
create the object for the class. If we want to create the
object for the class, we need to write the default
constructor, which is a public one.

how many methods are there in RequestPrccesor class?

2 Answers   Infosys,

Hi frnds iam new to struts wen iam running helloworld application using struts iam getting the error as belwo kindly any one can solve it plzz .....thanks in advance......... Nov 18, 2009 9:27:46 PM org.apache.tomcat.util.digester.SetPropertiesRule begin WARNING: [SetPropertiesRule]{Server/Service/Engine/Host/Context} Setting property 'source' to 'org.eclipse.jst.jee.server:StrutsExample1' did not find a matching property. Nov 18, 2009 9:27:46 PM org.apache.tomcat.util.digester.SetPropertiesRule begin WARNING: [SetPropertiesRule]{Server/Service/Engine/Host/Context} Setting property 'source' to 'org.eclipse.jst.jee.server:Struts1' did not find a matching property. Nov 18, 2009 9:27:46 PM org.apache.catalina.core.AprLifecycleListener init INFO: The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: C:\Program Files\Java\jre6\bin;.;C:\WINDOWS\Sun\Java\bin;C:\WINDOWS\sys tem32;C:\WINDOWS;C:/Program Files/Java/jre6/bin/client;C:/Program Files/Java/jre6/bin;C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOW S\System32\Wbem;C:\Program Files\Java\jdk1.5.0_18\bin; Nov 18, 2009 9:27:46 PM org.apache.coyote.http11.Http11Protocol init INFO: Initializing Coyote HTTP/1.1 on http-8081 Nov 18, 2009 9:27:46 PM org.apache.catalina.startup.Catalina load INFO: Initialization processed in 678 ms Nov 18, 2009 9:27:46 PM org.apache.catalina.core.StandardService start INFO: Starting service Catalina Nov 18, 2009 9:27:46 PM org.apache.catalina.core.StandardEngine start INFO: Starting Servlet Engine: Apache Tomcat/6.0.20 Nov 18, 2009 9:27:46 PM org.apache.catalina.core.ApplicationContext log INFO: Marking servlet action as unavailable Nov 18, 2009 9:27:46 PM org.apache.catalina.core.ApplicationContext log SEVERE: Error loading WebappClassLoader delegate: false repositories: /WEB-INF/classes/ ----------> Parent Classloader: org.apache.catalina.loader.StandardClassLoader@ca2dce org.apache.struts.action.ActionServlet java.lang.ClassNotFoundException: org.apache.struts.action.ActionServlet at org.apache.catalina.loader.WebappClassLoader.loadClass(Webap pClassLoader.java:1387) at org.apache.catalina.loader.WebappClassLoader.loadClass(Webap pClassLoader.java:1233) at org.apache.catalina.core.StandardWrapper.loadServlet(Standar dWrapper.java:1095) at org.apache.catalina.core.StandardWrapper.load(StandardWrappe r.java:993) at org.apache.catalina.core.StandardContext.loadOnStartup(Stand ardContext.java:4149) at org.apache.catalina.core.StandardContext.start(StandardConte xt.java:4458) at org.apache.catalina.core.ContainerBase.start(ContainerBase.j ava:1045) at org.apache.catalina.core.StandardHost.start(StandardHost.jav a:722) at org.apache.catalina.core.ContainerBase.start(ContainerBase.j ava:1045) at org.apache.catalina.core.StandardEngine.start(StandardEngine .java:443) at org.apache.catalina.core.StandardService.start(StandardServi ce.java:516) at org.apache.catalina.core.StandardServer.start(StandardServer .java:710) at org.apache.catalina.startup.Catalina.start(Catalina.java:583 ) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:2 88) at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:41 3) Nov 18, 2009 9:27:46 PM org.apache.catalina.core.StandardContext loadOnStartup SEVERE: Servlet /Struts1 threw load() exception java.lang.ClassNotFoundException: org.apache.struts.action.ActionServlet at org.apache.catalina.loader.WebappClassLoader.loadClass(Webap pClassLoader.java:1387) at org.apache.catalina.loader.WebappClassLoader.loadClass(Webap pClassLoader.java:1233) at org.apache.catalina.core.StandardWrapper.loadServlet(Standar dWrapper.java:1095) at org.apache.catalina.core.StandardWrapper.load(StandardWrappe r.java:993) at org.apache.catalina.core.StandardContext.loadOnStartup(Stand ardContext.java:4149) at org.apache.catalina.core.StandardContext.start(StandardConte xt.java:4458) at org.apache.catalina.core.ContainerBase.start(ContainerBase.j ava:1045) at org.apache.catalina.core.StandardHost.start(StandardHost.jav a:722) at org.apache.catalina.core.ContainerBase.start(ContainerBase.j ava:1045) at org.apache.catalina.core.StandardEngine.start(StandardEngine .java:443) at org.apache.catalina.core.StandardService.start(StandardServi ce.java:516) at org.apache.catalina.core.StandardServer.start(StandardServer .java:710) at org.apache.catalina.startup.Catalina.start(Catalina.java:583 ) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:2 88) at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:41 3) Nov 18, 2009 9:27:46 PM org.apache.coyote.http11.Http11Protocol start INFO: Starting Coyote HTTP/1.1 on http-8081 Nov 18, 2009 9:27:46 PM org.apache.jk.common.ChannelSocket init INFO: JK: ajp13 listening on /0.0.0.0:8009 Nov 18, 2009 9:27:46 PM org.apache.jk.server.JkMain start INFO: Jk running ID=0 time=0/31 config=null Nov 18, 2009 9:27:46 PM org.apache.catalina.startup.Catalina start INFO: Server startup in 616 ms

2 Answers  

When should we use SwtichAction?

0 Answers  

Is struts efficient?

0 Answers  

struts is thread safe or not ?give me answer as early as possible

5 Answers  

Hi frnds Ima facing problm with tomcat configuration.kindly can any one tell to me what is the mistake iam doing.i already configured tomcat as fallowing http://www.ibm.com/developerworks/opensource/library/os-eclipse-tomcat/ even though iam getting the PortNO .and changed with different no of Ports but no working kindly can any one tell me what is the mistake iam doing........?

1 Answers  

What is the difference between Jakarta Struts and Apache Struts? Which one is better to use?

0 Answers  

What is controller in struts ?

0 Answers  

What is strut action mapping?

0 Answers  

What are construction struts?

0 Answers  

Hai all.What is the use of <logic:iterate>tag in struts application.

3 Answers   CA, TCS,

For a single Struts application, can we have multiple struts-config.xml files?

0 Answers