What is numeric data type?
Is empty string in java?
Will the jvm load the package twice at runtime?
what is jndi?
If all the methods in abstract class are declared as abstract then what is difference between abstract class and in interface?
How do you achieve polymorphism in java?
Describe what a thread-local variable is in java?
What is string english?
What is the use of an interface?
How to obtain a performance profile of java program
Difference between concurrent hashmap and hashtable and collections
What is the maximum size of hashmap in java?
Difference between String & StringBuffer
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