I have defined a singleton class in which i am populating hashmap. I would like to use the value in another class. However i am getting null values. I have attached the code below. The class whi...

We wanted to  retrieve Calling Class name(with Package structure) so that we can control the work flow in certain way inside the called Class method. We have searched and found out two ways ... ...

Is there a mechanism where when a particular exception when thrown,(but this throw is not written inside a try-catch block) propagates to the Container level and not lost ? We wanted to throw an...

Give a float value like below how to convert it to three values like below an integer of 1 byte, a multiplier of 2 bytes and a divider of 1 byte. i have to split to these three values for any float...

hi all, please tell me why to use private static final in front of variable ? If the variable is final, its value will be constant in that class. So what is the need of static keyword because if th...