Can a boolean be null java?


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More Core Java Interview Questions

Suppose there is an Online shopping cart application having different objects like Cart, SelectionItem, Billing, COnfiguration, Authentication, Authorization, PersonalDetails etc. Out of this which one can be made a singleton pattern and why?

2 Answers   RBS,


I need some details about an employee. i have only the employee id in my presentation layer(JSP).I entered that ID and click "Show Details" Button. Question is how the JSP pass that id to Controller layer and DAO and what mechanism we are using to retrive data from DB and how the data passed to JSP as a Output. Please explain in detail.

1 Answers   TCS,


What is a numeric digit?

0 Answers  


What is the difference between jfc & wfc?

0 Answers  


Name and explain the types of ways which are used to pass arguments in any function in java.

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types of applets?.

7 Answers   TCS,


Can we declare an array without size in java?

0 Answers  


What is the statements?

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What are unchecked exceptions in java?

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What is a treemap in java?

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Why declare Main() inside the class in java ?

0 Answers   HCL,


What do you understand by weak reference?

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