What is an array length?
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difference between vectorlist and hash
What is a hashmap used for?
what is difference betwenn Access Specifier and Access Modifier ????
Is vector synchronized in java?
What is the use of singleton class?
Why to use nested classes in java? (Or) what is the purpose of nested class in java?
What is method reference?
Does java support Operator Overloading?
Difference between character constant and string constant in java ?
What is the java project architecture?
what is the difference b/w static and final methods?
What are aggregate functions explain with examples?