seguidodoblado

import java.math.BigInteger;

public final class IbanTest {

    public static final int IBANNUMBER_MIN_SIZE = 15;
    public static final int IBANNUMBER_MAX_SIZE = 34;
    public static final BigInteger IBANNUMBER_MAGIC_NUMBER = new BigInteger("97");

    public static boolean ibanTest(String accountNumber) {
        String newAccountNumber = accountNumber.trim();

seguidodoblado

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