39 lines
804 B
Java
39 lines
804 B
Java
// collectiontopics/FunctionalMap.java
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// (c)2020 MindView LLC: see Copyright.txt
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// We make no guarantees that this code is fit for any purpose.
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// Visit http://OnJava8.com for more book information.
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// Functional operations on a Map
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import java.util.*;
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import java.util.stream.*;
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import java.util.concurrent.*;
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import static onjava.HTMLColors.*;
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public class FunctionalMap {
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public static void main(String[] args) {
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MAP.entrySet().stream()
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.map(Map.Entry::getValue)
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.filter(v -> v.startsWith("Dark"))
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.map(v -> v.replaceFirst("Dark", "Hot"))
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.forEach(System.out::println);
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}
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}
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/* Output:
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HotBlue
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HotCyan
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HotGoldenRod
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HotGray
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HotGreen
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HotKhaki
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HotMagenta
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HotOliveGreen
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HotOrange
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HotOrchid
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HotRed
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HotSalmon
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HotSeaGreen
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HotSlateBlue
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HotSlateGray
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HotTurquoise
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HotViolet
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*/
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