Write code to check if a string is In a String array
//package com.book2s; public class Main { public static void main(String[] argv) { String substring = "book2s.com"; String[] source = new String[] { "1", "abc", "level", null, "book2s.com", "asdf 123" }; System.out.println(isIn(substring, source)); }//from w w w . jav a 2s . c om public static boolean isIn(String substring, String[] source) { if (source == null || source.length == 0) { return false; } for (int i = 0; i < source.length; i++) { String aSource = source[i]; if (aSource.equals(substring)) { return true; } } return false; } }