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Core Java Interview Questions and Answers For Freshers II

4,595 views · Published 11 September 2012 · 2:57 · Indexed 17 October 2026

Channel: Interview DOT · 2012 · Science & Technology

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Core Java Interview Questions and Answers for fresher's :

What is the difference between an Interface and an Abstract class ?
What is the purpose of garbage collection in Java, and when is it used ?
 Describe synchronization in respect to multithreading.
Explain different way of using thread ?
What are pass by reference and passby value ?
What is HashMap and Map ?
Difference between HashMap and HashTable ?
Difference between Vector and ArrayList ?
Difference between Swing and Awt ?
What is the difference between a constructor and a method ?
What is an Iterators ?
State the significance of public, private, protected, default modifiers and state the effect of package relationships on declared items qualified by these modifiers.
What is an abstract class ?
What is static in java?

Core Java Interview Questions and Answers for fresher's :

What is final ?
What is the Collections API ?
What is the List interface ?
What is the Vector class ?
What is an Iterator interface ?
Which java.util classes and interfaces support event handling ?
What is the Locale class ?
What is the highest-level event class of the event-delegation model ?
What is the Collection interface ?
What is the typical use of Hashtable ?
What is the difference between the size and capacity of a Vector ?
Can a vector contain heterogenous objects ?
What is polymorphism ?
Can we create an object of an abstract class ?
Can an interface extend a class ?
Math mat = new Math();  Will it compile successfully ?
What is heap ?


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