Write code to search index Of a char inside a string
//package com.book2s; public class Main { public static void main(String[] argv) { String str = "book2s.com"; char searchChar = 'a'; int startPos = 2; System.out.println(indexOf(str, searchChar, startPos)); }/* w w w . j a v a 2 s . c om*/ public static int indexOf(String str, char searchChar, int startPos) { if (isEmpty(str)) return -1; else return str.indexOf(searchChar, startPos); } public static boolean isEmpty(String str) { return str == null || str.length() == 0; } }