Here you can find the source of parseInt(String s)
public static int parseInt(String s)
//package com.java2s; /**// www. j a v a 2 s . com * Copyright (C) 2012 Hyperionics Technology LLC <http://www.hyperionics.com> * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ public class Main { public static int parseInt(String s) { try { return Integer.parseInt(s); } catch (NumberFormatException e) { return 0; } } }