package com.util;

/**
 * ASCII与16进制互转
 * 
 * @author cyw
 * @time 2018-08-14
 *
 */
public class ASCIIAndHEX {
	/**
	 * 16进制转ASCII
	 * 
	 * @param str
	 * @return
	 */
	public static String toASCII(String str) {

		char[] chars = str.toCharArray();

		StringBuffer hex = new StringBuffer();
		for (int i = 0; i < chars.length; i++) {
			hex.append(Integer.toHexString((int) chars[i]));
		}

		return hex.toString();
	}

	/**
	 * ASCII转16进制
	 * 
	 * @param hex
	 *            ASCII码
	 * @return
	 */
	public static String toHex(String hex) {

		StringBuilder sb = new StringBuilder();
		StringBuilder temp = new StringBuilder();

		for (int i = 0; i < hex.length() - 1; i += 2) {
			String output = hex.substring(i, (i + 2));
			int decimal = Integer.parseInt(output, 16);
			sb.append((char) decimal);
			temp.append(decimal);
		}

		return sb.toString();
	}

}