Can you create an object of an abstract class?
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What is casting ?
What is the difference between throw and throws keywords?
What will be the output of the program? public class Test { public static void main(String args[]) { ArrayList<String> list = new ArrayList<String>(); list.add("2"); list.add("3"); list.add("4"); list.add("5"); System.out.println("size :"+list.size()); for(int i=0;i<list.size();i++) { list.remove(i); } System.out.println("size after:"+list.size()); } }
Why charat is used in java?
What is instance synchronization?
When is the garbage collection used in Java?
Which is faster call by value or call by reference?
where exactly collections are usefull in realtime
Why does java have different data types for integers and floating-point values?
Java does not support multiple inheritance. how interface helps in the same?
How does multithreading take place on a computer with a single cpu?
What is high level language in computer?