Is null an object java?
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Why is sizeof not a function?
Difference between JDK, JRE, JVM
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Tell me how many ways are there to initialise an integer with a constant.
What is more advisable to create a thread, by implementing a Runnable interface or by extending Thread class?
What is java in simple terms?
What is an immutable object? How do you create one in java?
What is type parameter in java?
What is the hashcode () and equals () used for?
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.
Why pointers are not used in java?
what is difference betwwen hashmap and hashtable ?
What are three types of loops in java?