Hashmap Key Value Null

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Hashmap Key Value Null

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Hash Tables Explained In Simple Terms YouTube

As you have HashMap lt String HashMap gt you would need two loops one for the outer and one for the inner HashMap Btw you should definitively type the second HashMap don t know This creates an anonymous subclass of HashMap whose instance initializer puts these values By the way a map can t contain twice the same value your second put will overwrite the first

Top 75 Java Interview Questions Can HashMap Contains Key As Null Or

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