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About scala mutable package under the Map and immutable Map problem under the package

Time:10-11

Immutable. The Map is not immutable? Why I use the console operation, scala. Collections. Immutable. The Map element can be added?

Because of using the var???

CodePudding user response:

This is the version I used
Scala 2.12.6 (Java HotSpot (TM), 64 - Bit VM Server, Java 1.8.0 comes with _45).

CodePudding user response:

Well, no one??????? Sad T_T
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