What is the this keyword?
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Does java list allow null?
class A { private int i; } class B extends A { private int i; } if I create an object of B class what will be the memory of that object.
What are MalformedURLException and UnknownHost Exceptions and whey they will be thrown?
How do you add an element to an arraylist in java?
Write a code to show a static variable?
Why string is not thread safe?
Why is java called java?
Is empty string in java?
what is purpose of collections.unmodified() method..?
Difference between stack and queue?
What is the relationship between class and object?
In java, how we can disallow serialization of variables?