Convert Array to Map in Java.
This example use the Apache Commons ArrayUtils class to convert a two dimensional array to a Map object.
This example shows how to convert Array to Map in Java. Apache Commons ArrayUtils toMap method converts two dimentional Array to Map object.
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import java.util.Map; import org.apache.commons.lang.ArrayUtils; public class ArrayToMapExample { public static void main(String[] args) { // // A two dimensional array of countries capital. // String[][] countries = { { "United States", "New York" }, { "United Kingdom", "London" }, { "Netherlands", "Amsterdam" }, { "Japan", "Tokyo" }, { "France", "Paris" } }; // // To convert an array to a Map each array elements must // be an array with at least two elements where the first // element will be the key and the second element will be // the value. // Map countryCapitals = ArrayUtils.toMap(countries); System.out.println("Capital of Japan is " + countryCapitals.get("Japan")); System.out.println("Capital of France is " + countryCapitals.get("France")); } } |