Android examples for java.lang:Math Formula
Formula to calculate trapezoid Perimeter
import java.text.DecimalFormat; public class Main{ private static double result; public static double trapezoidPerimeter(double base1, double base2, double base3, double base4) throws InvalidInputException { if (base1 >= 0 && base2 >= 0 && base3 >= 0 && base4 >= 0) { result = (base1 + base2 + base3 + base4); return result; } else {/* w w w . jav a2 s .c om*/ throw new InvalidInputException(); } } }