Java 8 List into Map

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半阙折子戏
半阙折子戏 2020-11-22 03:38

I want to translate a List of objects into a Map using Java 8\'s streams and lambdas.

This is how I would write it in Java 7 and below.

private Map&l         


        
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  •  眼角桃花
    2020-11-22 04:32

    Use getName() as the key and Choice itself as the value of the map:

    Map result =
        choices.stream().collect(Collectors.toMap(Choice::getName, c -> c));
    

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