Why string is not thread safe?
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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
Is a boolean variable?
How can you set the applet size?
Are global variables initialized to zero?
What is cr keyboard?
How do you create an array in java?
what are the analysis of an object
Are variables stored in ram?
we have two threads..both the threads are reading the data.. is there any need of synchronization there?...justify it?
Can a class have multiple constructors?
How does java enable high performance?
What does mean in regex?