When should I use singleton?
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How to use string tokenizer class.
why use interface? if interface declear a method implement in class. why direct implement method in class
What are the parameters used in Connection pooling?
What about anonymous inner classes in java?
Can I import same package/class twice?
How do you create an array in java?
what is Thread priority?
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What are the different data types in java?
why the primitive data type have classes?
Which variable is the independent variable?
Which method cannot be overridden in java?
What are heterogeneous objects?