What is string in java? String is a data type?
What is string pool in java?
What is qualitative variable?
Explain the difference between hashmap and hashtable in java?
What is a local, member and a class variable?
What are the interfaces defined by Java.lang package?
What is an object?s lock? Give name of object?s that have locks?
What are latest features introduced with java 8?
Can we pass a primitive type by reference in java? How
What are the benefits of operations in java?
IN java collections we have both interfaces and classes. instead of using interfaces why we can't use classes only like that why we can't use interfaces only. why we need two things interface and class.
string is immutable? right every one knows that, my question is it advantage or disadvantage making string immutable?
What are the different http methods?