What does nullpointerexception mean?
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What if I write static public void instead of public static void in java?
What are conditionals and its types?
What are user defined exceptions?
What is the difference between error and exception and explain in simple words not whatever is given in the book.
What is initial size of arraylist in java?
Does constructor return any value?
What are the practical benefits, if any, of importing a specific class rather than an entire package (e.g. Import java.net.* Versus import java.net.socket)?
whats the purposr of using serialization?
extending thread class or implementing runnable interface. Which is better? : Java thread
What is the statements?
How do you define a variable?
what is the use of pojo (plain old java objects)? how it is interact with crystal reports? pls urgent