Here you can find the source of toInt(String s)
public static int toInt(String s)
//package com.java2s; public class Main { public static int toInt(String s) { if ((s != null) && (!("".equals(s.trim())))) try { return Integer.parseInt(s); } catch (Exception e) { return 0; }/*from w ww .j a v a2 s. com*/ return 0; } public static boolean equals(String s1, String s2) { if ((isEmpty(s1)) && (isEmpty(s2))) return true; if ((!(isEmpty(s1))) && (!(isEmpty(s2)))) return s1.equals(s2); return false; } public static boolean isEmpty(String s) { return ((s == null) || ("".equals(s))); } public static String isEmpty(String s, String result) { if ((s != null) && (!(s.equals("")))) return s; return result; } }