When to use runnable interface vs thread class in java?
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while creating thread why we extend thread class
When is an object subject to garbage collection?
Give differences between Quicksort & Mergesort. When should these sorts be used and what is their running time?
Are primitives objects?
Can we override constructor in java?
what is request processor?
What is the difference between hashmap and hashtable in java?
What do you mean by of string::valueof expression in java 8?
Explain notify() method of object class ?
What is the differences between heap and stack memory in java? Explain
explain me with a code snippet about the generation and handling of null point exceptions.
Highest level event class of the event-delegation model?