What is bubble sort in java?
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Is hashset sorted in java?
Why are inner classes required?
When do we need to use internal iteration? When do we need to use external iteration?
Why put method is used?
what is predefined function in java?
why Java does not support multiple inheritances?
Difference between string, stringbuffer and stringbuilder?
What is scanner in java?
Is an empty arraylist null?
write a simple program inheritance?
What enableEvents() method do?
What is difference between printf and scanf?