When should I use singleton pattern?
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How do you use substring in java?
What is the difference between the reader/writer class hierarchy and the inputstream/outputstream class hierarchy in java programming?
Write a function for palindrome and factorial and explain?
0 Answers Honeywell, Huawei, Zomato,
What is vector?
I have a class which is abstract which contains only the abstract methods. This is similar to an interface. Then, if i have given a choice to choose one of them. Which one i have to choose and why?
Why do we use predicate in java?
Explain different ways of passing arguments to sub-routine?
What is an Iterator interface?
Can a vector contain heterogenous objects?
Why should we use singleton pattern instead of static class?
What is JVM and is it platform independent?
Why Java is not purely object oriented?
50 Answers Elitecore, Persistent, Reliance, Wipro,