What are scalar data types?
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I have a Arraylist object, it has duplecate values also. Now question is i want delete duplecate data in that objet with out using Set?
Why do we need strings in java?
define polymorphism in java
What is the is a and has a relation ship in oops concept in java?
Why is multiple inheritance not supported in java?
What is pojo class in java?
When a thread is executing a synchronized method , then is it possible for the same thread to access other synchronized methods of an object ?
How to do validation of the fields in any project ?
Explain different types of wrapper classes in java?
What classes of exceptions, thrown by a throw statement?
Difference between ‘is-a’ and ‘has-a’ relationship in java?
what is jndi?