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Technical Round
Tell us about your final year project and what was your role?
Tell about the project you did and your role in that project.
What is static variable? What is its use?
A static variable creates a single copy of the variable and is shared among all the objects at a class level.
Static variables are used to keep track of information that relates logically to an entire class, as opposed to information that varies from instance to instance.
What are access modifiers in Java?
n Java, access modifiers are special keywords which are used to restrict the access of a class, constructor, data member and method in another class. Java supports four types of access modifiers:
Default
Private
Protected
Public
Modifier
Default
Private
Protected
Public
Same Class
YES
YES
YES
YES
Same package subclass
YES
NO
YES
YES
Same package non-subclass
YES
NO
YES
YES
Different package subclass
NO
NO
YES
YES
Different package non-subclass
NO
NO
NO
YES
What is NULL pointer and far pointer?
NULL pointer is a pointer that is pointing to nothing. NULL pointer points to empty location in memory. The value of NULL pointer is 0. We can make a pointer to point to NULL.
Far pointer is a 32-bit pointer that can access information which is outside the computer memory.
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