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Air-Space-Ground / app / src / main / java / hcnetsdk / sdkhub / CommonMethod.java
package hcnetsdk.sdkhub;

public class CommonMethod {
    public static byte[] string2ASCII(String s, int length) {
        if (s == null || "".equals(s)) {
            return null;
        }

        char[] chars = s.toCharArray();
        byte[] asciiArray = new byte[length];

        for (int i = 0; i < length; i++) {
            if (i < chars.length) {
                asciiArray[i] = char2ASCII(chars[i]);
            } else {
                asciiArray[i] = char2ASCII('\0');
            }
        }
        return asciiArray;
    }

    public static byte char2ASCII(char c) {
        return (byte) c;
    }

    public static String toValidString(String s) {
        String[] sIP;
        sIP = s.split("\0", 2);
        return sIP[0];
    }
}