What function extracts specified characters from a string?
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Can we have any other return type than void for main method?
What is final keyword in java?
What is the reason behind using constructors and destructors?
Define packages in java?
Can a method inside a interface be declared as final?
What is static import?
what is the use of private constructor in core java?
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What are Normalization Rules? Define Normalization?
What is a bubble sort in java?
Is java platform independent?
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
What is general methodology?
Core Java 
