Explain scope or life time of local variables in java?
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What do you mean by default constructor in java?
What are exception handling keywords in java?
Can a class have multiple subclasses?
Explain 5 features introduced in jdk 1.7?
Why stringbuilder is not thread safe in java?
What Is Query Throttling in java?
What is meant by Servelet? What are the parameters of service method?
what is meant by package in java?
I am unable to find or learn about print command. I have a graphical program in core java in applet but i want to give print command but i have coding for that so if anyone know about this plz mail me on avdhesh_chauhan007@yahoo.co.in
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
Are arrays passed by reference in java?
What is the purpose of garbage collection in java? When is it used?