How many types of design patterns are there?
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Explain the importance of throwable class and its methods?
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
Can we use catch statement for checked exceptions?
How to do encapsulation in java?
What is a parameter example?
What is the purpose of nested class in java?
What are peerless components in java programming?
What is a nullable field?
what is mean by String and StringBuffer? What is mean by Methooverriding and Overloading?
Explain the importance of import keyword in java?
What are the types of methods in java?
What is the purpose of the strictfp keyword?