public class ConverterUser { public static void main(String args[]) { Converter.Distance distance = new Converter.Distance(); Converter converter = new Converter(); Converter.Weight weight = converter.new Weight(); System.out.println( "5 m = " + distance.metersToInches(5) + " in"); System.out.println( "5 kg = " + weight.kgsToPounds(5) + " lbs"); } } // ConverterUser