Answer Posted / shylaja adam
Jvm is Java virtual machine. It works like both compiler and interpreter for the java programs. where as Jre is Java runtime environmet. As the name implies It provides supoort for java programs by providing runtime environment that is needed to execute.
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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
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