Example usage for java.math BigInteger BigInteger

Introduction

In this page you can find the example usage for java.math BigInteger BigInteger.

Prototype

private BigInteger(long val)

Source Link

Document

Constructs a BigInteger with the specified value, which may not be zero.

Usage

From source file:com.livinglogic.ul4.FunctionInt.java

public static Object call(Object obj) {
    if (obj instanceof String) {
        try {//w  w  w.  j  av a2  s.  c o  m
            return Integer.valueOf((String) obj);
        } catch (NumberFormatException ex1) {
            try {
                return Long.valueOf((String) obj);
            } catch (NumberFormatException ex2) {
                return new BigInteger((String) obj);
            }
        }
    } else if (obj instanceof Integer || obj instanceof Byte || obj instanceof Short || obj instanceof Long)
        return obj;
    else if (obj instanceof BigInteger)
        return Utils.narrowBigInteger((BigInteger) obj);
    else if (obj instanceof Boolean)
        return ((Boolean) obj).booleanValue() ? NumberUtils.INTEGER_ONE : NumberUtils.INTEGER_ZERO;
    else if (obj instanceof Float || obj instanceof Double)
        return ((Number) obj).intValue();
    else if (obj instanceof BigDecimal)
        return ((BigDecimal) obj).toBigInteger();
    throw new ArgumentTypeMismatchException("int({})", obj);
}

From source file:dingwen.Command.java

public static void removeShapeCmd(String command, ShapeCache shapeCache) {
    BigInteger id = null;//from   w ww. java  2 s .  c  o  m
    if (NumberUtils.isNumber(command.substring(command.indexOf(" ") + 1))) {
        id = new BigInteger(command.substring(command.indexOf(" ") + 1));
        Shape shape = shapeCache.removeShape(id);
        if (shape == null) {
            System.out.println(CommonStatement.SHAPE_NOT_EXISTS);
        } else {
            System.out.println("Removed shape " + id + " : " + shape.toString());
        }
    } else {
        System.out.println(CommonStatement.ID_INVALID);
    }
}

From source file:Main.java

public static String byteArrayToHexString(byte[] bytes) {
    int oldLength = bytes.length;
    byte[] positiveBytes = new byte[oldLength + 1];
    System.arraycopy(bytes, 0, positiveBytes, 1, oldLength);
    positiveBytes[0] = 1;/*from   w w  w. j  av a 2  s .  com*/
    BigInteger bigInt = new BigInteger(positiveBytes);
    String hex = bigInt.toString(16);
    return hex.substring(1);
}

From source file:PrimeCheck.java

public PrimeCheck() {
    setDefaultCloseOperation(EXIT_ON_CLOSE);
    JPanel pnl = new JPanel();
    JButton btnCheck = new JButton("Check");
    ActionListener al;// w  w w  . j a v a  2  s. c  o m
    al = new ActionListener() {
        public void actionPerformed(ActionEvent ae) {
            try {
                BigInteger bi = new BigInteger("1234567");
                System.out.println("One moment...");
                new PrimeCheckTask(bi).execute();
            } catch (NumberFormatException nfe) {
                System.out.println("Invalid input");
            }
        }
    };
    btnCheck.addActionListener(al);
    pnl.add(btnCheck);
    getContentPane().add(pnl, BorderLayout.NORTH);
    pack();
    setResizable(false);
    setVisible(true);
}

From source file:CRC32HashBuilder.java

/**
 * {@inheritDoc}/*from   w w w . j  a  va 2s.co m*/
 */
public String getHash(final InputStream input) throws IOException {
    if (input == null) {
        throw new IllegalArgumentException("Content cannot be null!");
    }
    final Checksum checksum = new CRC32();
    final byte[] bytes = new byte[1024];
    int len = 0;
    while ((len = input.read(bytes)) >= 0) {
        checksum.update(bytes, 0, len);
    }

    final String hash = new BigInteger(Long.toString(checksum.getValue())).toString(16);
    return hash;
}

From source file:kltn.dao.UserDAO.java

public boolean login(String username, String password) {
    Session session = HibernateUtil.getSessionFactory().openSession();
    String md5 = new BigInteger(DigestUtils.md5(password)).toString(16);
    System.out.println(md5);/* ww  w .  j  a v  a  2  s.  c om*/
    List<String> list = null;
    Transaction tx = null;
    try {

        tx = session.beginTransaction();
        Criteria cr = session.createCriteria(User.class);
        cr.add(Restrictions.eq("username", username));
        cr.add(Restrictions.eq("password", md5));
        list = cr.list();
        System.out.println(list.size());
        tx.commit();
    } catch (HibernateException he) {
        if (tx != null && tx.isActive()) {
            tx.rollback();
        }
    } finally {
        session.close();
    }
    return (list.size() == 1);
}

From source file:Main.java

public static BigInteger getBigInteger(Object value) {
    BigInteger ret = null;/*from  ww w .  j  a  va2 s .c  o  m*/
    if (value != null) {
        if (value instanceof BigInteger) {
            ret = (BigInteger) value;
        } else if (value instanceof String) {
            ret = new BigInteger((String) value);
        } else if (value instanceof BigDecimal) {
            ret = ((BigDecimal) value).toBigInteger();
        } else if (value instanceof Number) {
            ret = BigInteger.valueOf(((Number) value).longValue());
        } else {
            throw new ClassCastException("Not possible to coerce [" + value + "] from class " + value.getClass()
                    + " into a BigInteger.");
        }
    }
    return ret;
}

From source file:jp.co.ntts.vhut.util.MacConversionUtil.java

/**
 * ??????./*from  w  ww .  j  av  a2 s. com*/
 * @param mac 
 * @param macStart 
 * @return ?
 */
public static int getMacAddressOrder(String mac, String macStart) {
    BigInteger biMacTarget = new BigInteger(addrToByte(mac));
    BigInteger biMacStart = new BigInteger(addrToByte(macStart));
    return biMacTarget.subtract(biMacStart).intValue();
}

From source file:PalidromeArray.java

public static PalidromeArray fromString(String s) {
    String[] arr = s.split("\\|");
    BigInteger[] bi = new BigInteger[arr.length];
    for (int i = 0; i < arr.length; i++)
        bi[i] = new BigInteger(arr[i]);

    return new PalidromeArray(bi);
}

From source file:com.l2jfree.util.HexUtil.java

/**
 * Converts a byte array to a legacy HexID.
 * /*www. jav a2 s. c o m*/
 * @param hex a byte array
 * @return HexID
 */
public static String hexToString(byte[] hex) {
    if (hex == null)
        return "null";

    return new BigInteger(hex).toString(16);
}