Write code to get Before Separator Or Nothing
//package com.book2s; public class Main { public static void main(String[] argv) { String name = "book2s.com"; System.out.println(getBeforeSeparatorOrNothing(name)); }// w w w .j a v a2 s .com private static final String SEPARATOR = ":"; public static String getBeforeSeparatorOrNothing(String name) { int index = name.indexOf(SEPARATOR); if (index == -1 || name.startsWith(SEPARATOR)) return ""; else return name.substring(0, index); } }