分享非常有用的Java程序 (关键代码)(五)---把 Array 转换成 Map

import java.util.Map;
import org.apache.commons.lang.ArrayUtils;
public class Main {
public static void main(String[] args) {
String[][] countries = { { "United States", "New York" },
{ "United Kingdom", "London" },
{ "Netherland", "Amsterdam" },
{ "Japan", "Tokyo" },
{ "France", "Paris" } };
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"));
}
}