Examples with BigDecimal java.math.BigDecimal used on opensource projects

Example 86 with BigDecimal

use of java.math.BigDecimal in project guava by google.

the class LongMathTest method testDivNonZero.

// TODO
@GwtIncompatible
// TODO(cpovirk): File BigDecimal.divide() rounding bug.
@AndroidIncompatible
public void testDivNonZero() {
    for (long p : NONZERO_LONG_CANDIDATES) {
        for (long q : NONZERO_LONG_CANDIDATES) {
            for (RoundingMode mode : ALL_SAFE_ROUNDING_MODES) {
                long expected = new BigDecimal(valueOf(p)).divide(new BigDecimal(valueOf(q)), 0, mode).longValue();
                long actual = LongMath.divide(p, q, mode);
                if (expected != actual) {
                    failFormat("expected divide(%s, %s, %s) = %s; got %s", p, q, mode, expected, actual);
                }
            }
        }
    }
}

Example 87 with BigDecimal

use of java.math.BigDecimal in project guava by google.

the class DoubleMathTest method testRoundIntegralDoubleToBigInteger.

// DoubleMath.roundToBigInteger(double, RoundingMode)
@GwtIncompatible
public void testRoundIntegralDoubleToBigInteger() {
    for (double d : INTEGRAL_DOUBLE_CANDIDATES) {
        for (RoundingMode mode : ALL_SAFE_ROUNDING_MODES) {
            BigDecimal expected = new BigDecimal(d).setScale(0, mode);
            assertEquals(expected.toBigInteger(), DoubleMath.roundToBigInteger(d, mode));
        }
    }
}

Example 88 with BigDecimal

use of java.math.BigDecimal in project j2objc by google.

the class BigDecimalTest method test_abs.

/**
	 * @tests java.math.BigDecimal#abs()
	 */
public void test_abs() {
    BigDecimal big = new BigDecimal("-1234");
    BigDecimal bigabs = big.abs();
    assertTrue("the absolute value of -1234 is not 1234", bigabs.toString().equals("1234"));
    big = new BigDecimal(new BigInteger("2345"), 2);
    bigabs = big.abs();
    assertTrue("the absolute value of 23.45 is not 23.45", bigabs.toString().equals("23.45"));
}

Example 89 with BigDecimal

use of java.math.BigDecimal in project j2objc by google.

the class BigDecimalTest method test_subtractLjava_math_BigDecimal.

/**
	 * @tests java.math.BigDecimal#subtract(java.math.BigDecimal)
	 */
public void test_subtractLjava_math_BigDecimal() {
    BigDecimal sub1 = new BigDecimal("13948");
    BigDecimal sub2 = new BigDecimal("2839.489");
    BigDecimal result = sub1.subtract(sub2);
    assertTrue("13948 - 2839.489 is wrong: " + result, result.toString().equals("11108.511") && result.scale() == 3);
    BigDecimal result2 = sub2.subtract(sub1);
    assertTrue("2839.489 - 13948 is wrong", result2.toString().equals("-11108.511") && result2.scale() == 3);
    assertTrue("13948 - 2839.489 is not the negative of 2839.489 - 13948", result.equals(result2.negate()));
    sub1 = new BigDecimal(value, 1);
    sub2 = new BigDecimal("0");
    result = sub1.subtract(sub2);
    assertTrue("1234590.8 - 0 is wrong", result.equals(sub1));
    sub1 = new BigDecimal(1.234E-03);
    sub2 = new BigDecimal(3.423E-10);
    result = sub1.subtract(sub2);
    assertTrue("1.234E-03 - 3.423E-10 is wrong, " + result.doubleValue(), result.doubleValue() == 0.0012339996577);
    sub1 = new BigDecimal(1234.0123);
    sub2 = new BigDecimal(1234.0123000);
    result = sub1.subtract(sub2);
    assertTrue("1234.0123 - 1234.0123000 is wrong, " + result.doubleValue(), result.doubleValue() == 0.0);
}

Example 90 with BigDecimal

use of java.math.BigDecimal in project j2objc by google.

the class BigDecimalTest method test_negate.

/**
	 * @tests java.math.BigDecimal#negate()
	 */
public void test_negate() {
    BigDecimal negate1 = new BigDecimal(value2, 7);
    assertTrue("the negate of 1233.4560000 is not -1233.4560000", negate1.negate().toString().equals("-1233.4560000"));
    negate1 = new BigDecimal("-23465839");
    assertTrue("the negate of -23465839 is not 23465839", negate1.negate().toString().equals("23465839"));
    negate1 = new BigDecimal(-3.456E6);
    assertTrue("the negate of -3.456E6 is not 3.456E6", negate1.negate().negate().equals(negate1));
}