Java Convert Map to List Example


Let's write a Java program to convert Map values to List.

Convert Map Values to List Example

package net.javaguides.hibernate;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

public class MapValuesToListExample {

    public List < String > mapValuesToList(Map < Integer, String > sourceMap) {
        List < String > targetList = new ArrayList < > (sourceMap.values());
        return targetList;
    }

    public static void main(String[] args) {

        MapValuesToListExample arrayListSetExample = new MapValuesToListExample();
        Map < Integer, String > sourceMap = new HashMap < > ();
        sourceMap.put(100, "ABC");
        sourceMap.put(101, "PQR");
        sourceMap.put(102, "XYZ");
        List < String > targetList = arrayListSetExample.mapValuesToList(sourceMap);
        System.out.println(targetList.toString());
    }
}
Output:
[ABC, PQR, XYZ]

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