Can value be null in treemap?
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What are the types of sorting?
What are the major data structures used in the hierarchical data model?
What is meant by ordered and sorted in collections?
Write the postfix form of the expression: (a + b) * (c - d)
Are the expressions arr and &arr same for an array of integers?
Can treemap have duplicate values?
Define a relation?
Differentiate between queue and stack.
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Tell me do array subscripts always start with zero?
If you do not initialize an array what will happen?
Which sorting does collections sort use?