What is the r character?
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How to perform Singleton of the java class object on multi JVM?
What methodology can be utilized to link to a database?
What is the difference between notify and notifyall method?
What is the unit of plancks constant?
What is singleton class and how can we make a class singleton?
What is the default value of an object reference declared as an instance variable?
How do you convert int to char in java?
what are the rules to use try catch finally?
Can keyword be used as identifier?
I have a String s = java; What is the output when I say s.replaceAll('j', 'k'); Also what is the value of s after replacing?
What is constructor in java ?
How hashset works internally in java?