Java

public class TimeComparitor {

private List<LocalTime> targetTimes;

public TimeComparitor() {
    targetTimes = new ArrayList<LocalTime>();
}

public void addTargetTime(LocalTime target) {
    targetTimes.add(target);
}

public LocalTime getClosestFutureTarget(DateTime now) {
    LocalTime result = null;
    long resultOffset = Long.MAX_VALUE;
    ArrayList<String> bigger = new ArrayList<String>();

    for (LocalTime target : targetTimes) {
        DateTime todayTarget = target.toDateTimeToday();
        long differenceMillis = todayTarget.getMillis() - now.getMillis();
        if (differenceMillis > 0 && differenceMillis < resultOffset) {
            resultOffset = differenceMillis;
            result = target;
        } 
    }
    return result;
}

public class LocalTime implements Comparable<LocalTime> {
    ...
    public int compareTo(LocalTime o){
         // compare "this" to o
    }
}

byte[] keyBytes, ivBytes;
// Populate keyBytes and ivBytes with byte arrays of length 16 bytes (128 bits)

final SecretKey key = new SecretKeySpec(keyBytes, "AES");
final IvParameterSpec iv = new IvParameterSpec(ivBytes);

final Cipher encrypt = Cipher.getInstance("AES/CBC/PKCS5Padding");
final Cipher decrypt = Cipher.getInstance("AES/CBC/PKCS5Padding");

encrypt.init(Cipher.ENCRYPT_MODE, key, iv);
decrypt.init(Cipher.DECRYPT_MODE, key, iv);

final ByteArrayOutputStream outBytes = new ByteArrayOutputStream();
final CipherOutputStream out = new CipherOutputStream(outBytes, encrypt);

out.write("This is a test, of course.".getBytes());
out.close();

final byte[] encryptedBytes = outBytes.toByteArray();
final ByteArrayInputStream inBytes = new ByteArrayInputStream(encryptedBytes);
final CipherInputStream in = new CipherInputStream(inBytes, decrypt);

final byte[] result = new byte[100];
final int byteCount = in.read(result);

System.out.print('"');
System.out.print(new String(result, 0, byteCount));
System.out.println('"');