What is the preferred size of a component in java programming?
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Write a program to reverse array in place?
What is a nested structure?
What is ResourceBundle class?
What is an object class?
What is user defined exception in Java?
What are access specifiers in java ?
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What is string pool?
What is the arraylist in java?
What happens if an exception is not caught?
7) Suppose there is Student class like class student { int age; string name; } We want to store these objects in a HashMap. Do we need to override any methods in Student class? If any which ones and why? what if i just override equals or just hashcode? what will be the results in both the cases?
Why there are some null interface in java? What does it mean?
Can arraylist hold different types java?