public static void main(String[] args) {
		String result = "aAddress, Address Select EmployeeCode,EmployeeName,Address1,Address2,Address3,Addressaa";
		String keyWord = "Address";
		int position = 0;
		while(true) {
			if (position >= result.length()) break;
			
			int index = result.indexOf(keyWord, position);			
			if (index < 0) break;
			int i = index - 1;
			if (i > -1 && Utility.delimiters.indexOf(result.charAt(i)) < 0) {
				position = index + keyWord.length();
				continue;
			}
			i = index + keyWord.length();
			if (i < result.length() - 1 && Utility.delimiters.indexOf(result.charAt(i)) < 0 ) {
				position = index + keyWord.length();
				continue;
			}
			result = result.substring(0, index) + "<span style=\"background-color: yellow;\">" 
					+ result.substring(index, index + keyWord.length()) + "</span>"
					+ result.substring(index + keyWord.length());
			position = index + keyWord.length() + "<span style=\"background-color: yellow;\">".length();
		}
		System.out.println(result);
	}