What are different types of constants?
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Why can't we use static class instead of singleton?
Define interface in java?
what is difference betwwen hashmap and hashtable ?
Differentiate constructor and a method and how are it be used?
Suppose there is an Online shopping cart application having different objects like Cart, SelectionItem, Billing, COnfiguration, Authentication, Authorization, PersonalDetails etc. Out of this which one can be made a singleton pattern and why?
What is linkedlist in java?
What advantage do java's layout managers provide over traditional windowing systems?
What is string manipulation?
WHAT IS JDK,JVM,CLASS DEFINE ALL?
What is difference between filereader and bufferedreader?
Does list allow duplicates in java?
can any one tell me when do u go for inheritance and polymorphism