What is the collection interface?
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What is the use of object and class classes?
Why is logger singleton?
Name the immediate superclass of the MenuComponent class?
How does hashset work in java?
what is nested class in java?
Can we force garbage collector to run ?
Does a function need a return?
What will happen if there is a default method conflict as mentioned above and we have specified the same signature method in the base class instead of overriding in the existing class ?
how copy the hashmap object into arraylist at java program?
What is data type example?
What is logical variable?
What are the 3 types of control structures?