How do listeners work?
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What is the difference between class & object?
What is thread synchronization in java?
Why string is called as immutable?
can u give one sinario when you use Abstract Class and When you use Interface.
Can a static block throw exception?
I want to persist data of objects for later use. What’s the best approach to do so?
What is the difference between iterator and list iterator?
JVM is platform independent or depeneded?
5 Coding best practices you learned in java?
If all the methods in abstract class are declared as abstract then what is difference between abstract class and in interface?
How can you make sure that your singleton class will always return single instance in multi-threaded environment?
What is valid keyword in java?