J2EE Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

J2EE Interview Questions

Questions Answers Views Company eMail

what is external varibles in jsp?

Verizon,

1 6680

how many external variables are there in jsp ?

1 6558

when i m calling java for web browser . so browser it's not support. show error in browser: internal error occur. java.lang.NoClassDefFoundError. will you give me solution why it's not starting browser.? is there any consult with .net framework2.0?

2016

what is the purpose and activity of SessionFactory in hibernate?

Cognizant, HCL, Oracle, PiServe Technologies,

13 56419

what is defect. Is it runtime exception or comiletime exception

L&T,

3 7456

How to achieve multiple inheretence in java.I need an example. how we achieve.

2 6927

Can u give me sample code for ServiceImpl and DaoImpl, in j2ee .

1 6144

Hi friends can you give me sample code for Entire j2ee web application with struts and hibernate.I mean code for Dao, DaoImpl, HibernateDao ,HibernateDaoImpl, Dto , service , ServiceImpl , i.e.

1 3967

Hi friends, can u explain Transparent Persistence in hibernate with sample code.

2 7523

In DAO we are writting sql queries , how it is possible with creating and closing database connections.

1934

can someone tell me how does preparedstatement works? its an interface and where is the implementation?

Satyam, TCS,

3 8500

Hi Friends. I want complete technical flow of j2ee project with following technologies. jsp , servlet , Struts , Hibernate , (should follow mvc-2 design pattern) . with DAO ,DTO SERVICE layers .

Infosys,

4808

Possible ways for debugging java ,javascript,jsp and servlet. Can we use System.out.println debugging java.

2 5650

Every field has setter and getter methods.what is happening in this methods.

2 5457

servlet has not any main method in it how does it work by JVM?

7 24227

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Un-Answered Questions { J2EE }

What are the technologies a java developer must know?

907

What is archiving?

1080

What is source file in java?

926

How java is used in web applications?

941

What is the difference between load() and get()?

1080

What is document root?

925

public class ActionDTO extends GenericDTO implements Serializable,Auditable { // default serial version id, required for serializable classes. public static final String ACTION_SUSPEND = "SPN"; public static final String ACTION_DEREGISTER = "DRR"; public static final String ACTION_REINSTATE = "REI"; private static final long serialVersionUID = 1L; private Long actionId; private long accountId; private Date actionDate; private String actionType; private String remarks; private AccountDTO account; public ActionDTO() { } public ActionDTO(Long accountId, String action, String remarks, String updatedBy) { setAccountId(accountId); setActionType(action); setActionDate(new Date()); setRemarks(remarks); setUpdatedBy(updatedBy); } public Long getActionId() { return this.actionId; } public void setActionId(Long actionId) { this.actionId = actionId; } public long getAccountId() { return this.accountId; } public void setAccountId(long accountId) { this.accountId = accountId; } public Date getActionDate() { return this.actionDate; } public void setActionDate(Date actionDate) { this.actionDate = actionDate; } public String getActionType() { return this.actionType; } public void setActionType(String actionType) { this.actionType = actionType; } public String getRemarks() { return this.remarks; } public void setRemarks(String remarks) { this.remarks = remarks; } // bi-directional many-to-one association to AccountDTO public AccountDTO getAccount() { return this.account; } public void setAccount(AccountDTO account) { this.account = account; } @Override public String toString() { // TODO Auto-generated method stub return null; } } what is the purpose of @Override public String toString()...and what will do here ?

2578

What is java ee architecture?

902

What is j2ee specification?

903

What are the types of j2ee clients?

973

What is jaap?

960

Is java is a technology?

973

Which framework is best for java?

965

What is java gui?

889

Is java 100 percent pure object oriented?

929

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