Java tutorial
//package com.java2s; /* * Copyright (c) 2016 Vivid Solutions. * * All rights reserved. This program and the accompanying materials * are made available under the terms of the Eclipse Public License v1.0 * and Eclipse Distribution License v. 1.0 which accompanies this distribution. * The Eclipse Public License is available at http://www.eclipse.org/legal/epl-v10.html * and the Eclipse Distribution License is available at * * http://www.eclipse.org/org/documents/edl-v10.php. */ public class Main { public static Double convertDouble(String str) { double val = 0; try { val = Double.parseDouble(str); } catch (NumberFormatException ex) { } return new Double(val); } }