Kotlin Collections

What are Collections?

Collections store multiple values in a single variable.

List

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Output:

MutableList

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Output:

Set

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Output:

Map

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Output:

MutableMap

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Output:

Iterating Collections

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Output:

Full Example

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Output:

Why Collections are Important

Store multiple values
Organize data
Used in real-world apps
Essential for programming

Common Mistakes

Using immutable collections incorrectly
Confusing List and Set
Incorrect map access

Practice

Create and modify a list, then loop through it.

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Output:

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