Data update

Task/First-class-functions-Use-numbers-analogously/Java/first-class-functions-use-numbers-analogously.java

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+import java.util.List;
+import java.util.function.BiFunction;
+import java.util.function.Function;
+
+public class FirstClassFunctionsUseNumbersAnalogously {
+
+	public static void main(String[] args) {
+		final double x = 2.0,   xi = 0.5,
+				 	 y = 4.0,   yi = 0.25,
+				 	 z = x + y, zi = 1.0 / ( x + y );
+
+		List<Double> list = List.of( x, y, z );
+		List<Double> inverseList = List.of( xi, yi, zi );		
+		
+		BiFunction<Double, Double, Function<Double, Double>> multiplier = (a, b) -> product -> a * b * product;
+		
+		for ( int i = 0; i < list.size(); i++ ) {
+			Function<Double, Double> multiply = multiplier.apply(list.get(i), inverseList.get(i));
+			final double argument = (double) ( i + 1 );
+			System.out.println(multiply.apply(argument));
+		}		
+	}
+
+}