Write code to Count the number of times the given char is in the string
import static org.apache.camel.util.StringQuoteHelper.doubleQuote; public class Main{ public static void main(String[] argv){ String s = "book2s.com"; char ch = 'a'; System.out.println(countChar(s,ch)); }/* w w w. ja va 2 s . c o m*/ /** * Counts the number of times the given char is in the string * * @param s the string * @param ch the char * @return number of times char is located in the string */ public static int countChar(String s, char ch) { if (ObjectHelper.isEmpty(s)) { return 0; } int matches = 0; for (int i = 0; i < s.length(); i++) { char c = s.charAt(i); if (ch == c) { matches++; } } return matches; } }