What is string data?
How can you make a class serializable in java?
Is an empty arraylist null?
What are teh sub-classes of a component class?
How many bytes is double?
describe method overloading
Give the hierarchy of inputstream and outputstream classes.
What is the use of arraylist in java?
What is the use of put method?
Which sorting is best in java?
Under what circumstances an object reference be cast to an interface reference?
Explain oops concepts in detail?
How many bytes is string in java?