Can a boolean be null java?
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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?
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.
What is a numeric digit?
What is the difference between jfc & wfc?
Name and explain the types of ways which are used to pass arguments in any function in java.
types of applets?.
Can we declare an array without size in java?
What is the statements?
What are unchecked exceptions in java?
What is a treemap in java?
Why declare Main() inside the class in java ?
What do you understand by weak reference?