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Scala supports a way to keep track of key - value pairs using Maps. For example, you can create a Map mapping digits to their
Scala supports a way to keep track of keyvalue pairs using Maps. For example, you can create a Map mapping digits to their string equivalents as follows:
val digMap "zero", "one", "two", "three", "four", "five", "six", "seven", "eight", "nine"
Research functions particularly get, keys and apply available on Map.
Consider the following slightly outofdate Map for the British royal family rooted at late Queen Elizabeth, showing gender and parentage information for individuals. For example, the information for Prince Harry is represented using the "Harry" m "Diana", "Charles" mapping. The Map is based on an earlier version of the tree shown on this webpage:
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