Java Related Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Java J2EE (14736)
J2ME (151)
Java Related AllOther (507)

Java Related Interview Questions

Questions Answers Views Company eMail

what is j2se

3 6604

Employee has a Passport. here employee is an object and passport is an object, give the class design

3 4960

i have list of values(e.g 100). using logic:iterate, how can i print the multiples of 5th element? how the logic:iterate will understand the multiples of 5.

CTS, TCS,

2 9899

we have two threads..both the threads are reading the data.. is there any need of synchronization there?...justify it?

IBM,

4 8570

what is unreachable code problem in multiple catch statements

3 6765

how can we create the ui using netbeans,having the code?

1 2164

why i can not access private variable in other class?

4 6289

where lives in jvm

5 9203

how can i fetch combo box value into my DAO using struts 2?

3 14400

In my project iam integrating telephone line using some bridge. To connect my project to that telephone line they have give some jar file. Using dat i connected with that.. To handle that event like call attented, call disposed and idle time they have give one event listener class.. I did every thing and this class is alsoo called when a particular event is fired. The only thing is i wanna call EJB from that event listener method.. But the EJB is not getting initated and exception is thrown. This below shownn error is occured only i try to call it from this event listener class. In other places EJB calling is working fine.. javax.naming.NoInitialContextException: Cannot instantiate class: org.jnp.interfaces.NamingContextFactory [Root exception is java.lang.ClassNotFoundException: org/jnp/interfaces/NamingContextFactory] at javax.naming.spi.NamingManager.getInitialContext (NamingManager.java:657) at javax.naming.InitialContext.getDefaultInitCtx (InitialContext.java:247) at javax.naming.InitialContext.init(InitialContext.java:223) at javax.naming.InitialContext. (InitialContext.java:197) at com.kgisl.etrac.desk.servicelocator.ServiceLocator.getInitia lContext(ServiceLocator.java:82) at com.kgisl.etrac.commonUtils.EventListener.getAdministrationE JBRemote(EventListener.java:206) at com.kgisl.etrac.commonUtils.EventListener.CallDispositioned (EventListener.java:65) Caused by: java.lang.ClassNotFoundException: org/jnp/interfaces/NamingContextFactory at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Class.java:242) at com.sun.naming.internal.VersionHelper12.loadClass (VersionHelper12.java:42) at javax.naming.spi.NamingManager.getInitialContext (NamingManager.java:654) ... 6 more javax.naming.NoInitialContextException: Cannot instantiate class: org.jnp.interfaces.NamingContextFactory [Root exception is java.lang.ClassNotFoundException: org/jnp/interfaces/NamingContextFactory] at javax.naming.spi.NamingManager.getInitialContext (NamingManager.java:657) at javax.naming.InitialContext.getDefaultInitCtx (InitialContext.java:247) at javax.naming.InitialContext.init(InitialContext.java:223) at javax.naming.InitialContext. (InitialContext.java:197) at com.kgisl.etrac.desk.servicelocator.ServiceLocator.getInitia lContext(ServiceLocator.java:82) at com.kgisl.etrac.commonUtils.EventListener.getAdministrationE JBRemote(EventListener.java:206) at com.kgisl.etrac.commonUtils.EventListener.CallDispositioned (EventListener.java:65) Caused by: java.lang.ClassNotFoundException: org/jnp/interfaces/NamingContextFactory at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Class.java:242) at com.sun.naming.internal.VersionHelper12.loadClass (VersionHelper12.java:42) at javax.naming.spi.NamingManager.getInitialContext (NamingManager.java:654) ... 6 more It would be more help full if i get the solution 10x in advance balaji

1 4684

what is the difference between jad and manifest file?

Microsoft,

6 16457

Wt is the main difference between Java and Java J2EE and Advanced java?

Wipro,

5 23990

What is "Java Native Interface" and how to use it?

IBM,

1 6133

can any one tell me how to implement tcng (Traffic Control Next Generation) with HTB (Hierarchical Token Bucket) in Java?which particular class or API is used for that?

Accenture,

2896

What is the diff. b/w Interfaces & Abstract class?

Ericsson,

6 10766

Un-Answered Questions { Java Related }

Write a program to print count of empty strings in java 8?

1079

What is the difference between break and continue statements?

1117

What is java string pool?

1076

What is a classloader in java?

1084

Write a java program to find the route that connects between Red and Green Cells. General Rules for traversal 1. You can traverse from one cell to another vertically, horizontally or diagonally. 2. You cannot traverse through Black cells. 3. There should be only one Red and Green cell and at least one of each should be present. Otherwise the array is invalid. 4. You cannot revisit a cell that you have already traversed. 5. The maze need not be in the same as given in the above example

2659

What are the contents on web.xml in struts application ?

1058

What is lazy class?

480

what are the different modes of archival? Explain each mode in two lines each?

994

How can you inject java collection in spring?

503

what is reflection api? How are they implemented?

1102

Find Best Job Vacancies across the world on Jooble!

136

How to create a base64 decoder in java8?

1131

What is the first argument of the string array in main method?

1025

Can we return resultset in java?

988

explain different ways of using thread? : Java thread

1079

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