How do you decide when to use arraylist and linkedlist?
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What is the difference between size and length in java?
When should I use singleton pattern?
What is equlas() and hashcode() contract in java? Where does it used?
Is alive in java?
Is math an abstract class in java?
Can a constructor have different name than a class name in java?
What is the default initialized value of a boolean type variable?
Where pragma is used?
why there are multiple catches for a try block.don't tell me that there can be multiple exception of a code segment that's why.tell me the real fact behind this.
Objects or references which of them gets garbage collected?
Explain the significance of listiterator.
How to stop a thread in java? Explain about sleep () method in a thread?