What java is used for?
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How to Create A Wapper Class in core Java and Why are Use in java?
Are private methods final?
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
Is java free for businesses?
What are the two ways of implementing multi-threading in java?
what are the uses of Class class and what it returns? explain it with the example code.
Why do we need main method to execute a java program?
Do extraneous variables affect validity?
What is java reflection?
What is communist flag?
Can you override static methods?
Is static a singleton?