Java Convert Map to Array [Snippet]

Let's write a Java program that converts Map values to the String array.

Convert Map Values to Array Example

package net.javaguides.corejava;

import java.util.Arrays;
import java.util.Collection;
import java.util.HashMap;
import java.util.Map;

public class MapToArrayExample {
    public String[] mapValuesToArray(Map < Integer, String > sourceMap) {
        Collection < String > values = sourceMap.values();
        String[] targetArray = values.toArray(new String[values.size()]);
        return targetArray;
    }

    public static void main(String[] args) {

        MapToArrayExample mapToArrayExample = new MapToArrayExample();
        Map < Integer, String > sourceMap = new HashMap < > ();
        sourceMap.put(100, "ABC");
        sourceMap.put(101, "PQR");
        sourceMap.put(102, "XYZ");
        String[] targetArray = mapToArrayExample.mapValuesToArray(sourceMap);
        System.out.println(Arrays.toString(targetArray));
    }
}

Here is the output:

[ABC, PQR, XYZ]

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