Java BigInteger Calculate normalizarParaBigInteger(Number numero, RoundingMode modo)

Description

normalizar Para Big Integer

License

Open Source License

Declaration

public static BigInteger normalizarParaBigInteger(Number numero, RoundingMode modo) throws ArithmeticException 

Method Source Code

//package com.java2s;
//License from project: Open Source License 

import java.math.BigDecimal;
import java.math.BigInteger;
import java.math.RoundingMode;

public class Main {
    public static BigInteger normalizarParaBigInteger(Number numero, RoundingMode modo) throws ArithmeticException {
        BigInteger valor;//from  w  w  w  . j  ava  2s.c o  m

        if (numero instanceof BigDecimal) {
            if (modo != null) {
                valor = ((BigDecimal) numero).divide(BigDecimal.ONE, modo).toBigIntegerExact();

            } else {
                valor = ((BigDecimal) numero).toBigIntegerExact();
            }

        } else if (numero instanceof Double) {
            BigDecimal bd = BigDecimal.valueOf((double) numero);

            if (modo != null) {
                valor = bd.divide(BigDecimal.ONE, modo).toBigIntegerExact();

            } else {
                valor = bd.toBigIntegerExact();
            }

        } else if (numero instanceof Float) {
            BigDecimal bd = BigDecimal.valueOf((float) numero);

            if (modo != null) {
                valor = bd.divide(BigDecimal.ONE, modo).toBigIntegerExact();

            } else {
                valor = bd.toBigIntegerExact();
            }

        } else if (numero instanceof BigInteger) {
            valor = (BigInteger) numero;

        } else {
            valor = BigInteger.valueOf(numero.longValue());
        }

        return valor;
    }

    public static BigInteger normalizarParaBigInteger(Number numero) {
        return normalizarParaBigInteger(numero, null);
    }
}

Related

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2. modulus(BigInteger value, BigInteger divider, int modulo, int... weight)
3. multi_exponent(BigInteger[] base, BigInteger[] exponent, BigInteger modulus)
4. multiply(BigInteger x, BigInteger y)
5. negative(BigInteger n)
6. numberToIpv4(BigInteger ipNumber)
7. numberToShortString(BigInteger number)
8. order(BigInteger a, BigInteger p, BigInteger f[], BigInteger e[])
9. parseBigInteger(String s, BigInteger defaultValue)