Describe how to implement singleton design pattern in struts.
Give a practical example of singleton class usage?
How does java enable high performance?
What are the differences between processes and threads?
When we should use serialization?
Can we override a variable in java?
Explain oops concepts in detail?
Is java pass by value or pass by reference?
Explain parallel processing in java8?
What are unchecked exceptions in java?
List some java keywords sun like c, c + + keywords?
What is the default value stored in Local Variables?
Can we declare a class as static?