Array转化为map
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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" ));
}
}
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