What is a java lambda expression?
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What is an Applet ?
Explain cookies?
Can you call a constructor within a constructor?
In multi-threading how can we ensure that a resource isn't used by multiple threads simultaneously?
can abstract class have constructor how can you achive this ?
Which method you will use to create a new file to store some log data. Each time a new log entry is necessary, write string to the file in java ?
Why ArrayList class is not a synchronized class and why it is not a thread safe class? explain
What is final int?
What is the purpose of finalization?
How do you reverse sort a list in java?
can we add two numbers without using arthematic operators? if possible how?
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