Java tutorial
//package com.java2s; public class Main { /** * * @param variation * @return */ public static double parseVariation(String variation) { double var = 0; if ((null == variation) || (variation.length() < 3)) { return 0; } else { var = Double.parseDouble(variation.substring(0, 2)); if (variation.contains("E")) { var = -var; } } return var; } }