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What is the main purpose of serialization in java?
What is a function argument in java?
What are invisible components?.
Is null keyword in java?
How is a variable stored in memory?
Which list is sorted in java?
What is the difference between heap memory and stack memory?
What is instance example?
What are different data structures in java?
What is the purpose of the system class in java?
What is a file pointer?
how a programmer confirms that the data submitted has been succesfully inserted into the database(either oracle or my sql).. How a programmer confirm if there is any problem with the program he wrote for insertion... ANS:--- >executeupdate method is having boolean return type, if anything goes wrong in data insertion or data updation, it would return false. otherwise, if it successfully inserts data into the database, it would return true NOW HOW TO I CHECK IN MY DURING EXECUTION WHETHER IT RETURNS TRUE OR FALSE... WELL IT WILL DISPLAY ANY MESSAGE OR NOT
How big is a pointer?
What is a ternary operator in java? What is an interface?
Which programming language is most secure?
