What do you mean by platform independence of Java?
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What do you mean by a JVM?
Can a class be private in java?
What is a modifier?
Why do we need to override equals() and hascode() method of object class?
How many types of modifiers are there?
Matrix multiplication only using OOP concepts .
What is double data type?
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 to reverse a string in java?
What is the purpose of a transient variable?
Can an unreachable object become reachable again?
What is data member in java?