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

Example 6 with MathContext

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

the class BigDecimalConstructorsTest method testConstrLongMathContext.

/**
     * new BigDecimal(long, MathContext)
     */
public void testConstrLongMathContext() {
    long a = 4576578677732546982L;
    int precision = 5;
    RoundingMode rm = RoundingMode.CEILING;
    MathContext mc = new MathContext(precision, rm);
    String res = "45766";
    int resScale = -14;
    BigDecimal result = new BigDecimal(a, mc);
    assertEquals("incorrect value", res, result.unscaledValue().toString());
    assertEquals("incorrect scale", resScale, result.scale());
}

Example 7 with MathContext

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

the class BigDecimalCompareTest method testAbsMathContextNeg.

/**
     * Abs(MathContext) of a negative BigDecimal
     */
public void testAbsMathContextNeg() {
    String a = "-123809648392384754573567356745735.63567890295784902768787678287E+21";
    BigDecimal aNumber = new BigDecimal(a);
    int precision = 15;
    RoundingMode rm = RoundingMode.HALF_DOWN;
    MathContext mc = new MathContext(precision, rm);
    String result = "1.23809648392385E+53";
    int resScale = -39;
    BigDecimal res = aNumber.abs(mc);
    assertEquals("incorrect value", result, res.toString());
    assertEquals("incorrect scale", resScale, res.scale());
}

Example 8 with MathContext

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

the class BigDecimalCompareTest method testPlusMathContextPositive.

/**
     * plus(MathContext) for a positive BigDecimal
     */
public void testPlusMathContextPositive() {
    String a = "92948782094488478231212478987482988429808779810457634781384756794987";
    int aScale = 41;
    int precision = 37;
    RoundingMode rm = RoundingMode.FLOOR;
    MathContext mc = new MathContext(precision, rm);
    String c = "929487820944884782312124789.8748298842";
    int cScale = 10;
    BigDecimal aNumber = new BigDecimal(new BigInteger(a), aScale);
    BigDecimal res = aNumber.plus(mc);
    assertEquals("incorrect value", c, res.toString());
    assertEquals("incorrect scale", cScale, res.scale());
}

Example 9 with MathContext

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

the class BigDecimalCompareTest method testNegateMathContextNegative.

/**
     * negate(MathContext) for a negative BigDecimal
     */
public void testNegateMathContextNegative() {
    String a = "-92948782094488478231212478987482988429808779810457634781384756794987";
    int aScale = 49;
    int precision = 46;
    RoundingMode rm = RoundingMode.CEILING;
    MathContext mc = new MathContext(precision, rm);
    String c = "9294878209448847823.121247898748298842980877981";
    int cScale = 27;
    BigDecimal aNumber = new BigDecimal(new BigInteger(a), aScale);
    BigDecimal res = aNumber.negate(mc);
    assertEquals("incorrect value", c, res.toString());
    assertEquals("incorrect scale", cScale, res.scale());
}

Example 10 with MathContext

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

the class BigDecimalArithmeticTest method testDivideBigDecimalScaleMathContextHALF_DOWN.

/**
     * divide(BigDecimal, MathContext)
     */
public void testDivideBigDecimalScaleMathContextHALF_DOWN() {
    String a = "3736186567876876578956958765675671119238118911893939591735";
    int aScale = 45;
    String b = "134432345432345748766876876723342238476237823787879183470";
    int bScale = 70;
    int precision = 21;
    RoundingMode rm = RoundingMode.HALF_DOWN;
    MathContext mc = new MathContext(precision, rm);
    String c = "2.77923185514690367475E+26";
    int resScale = -6;
    BigDecimal aNumber = new BigDecimal(new BigInteger(a), aScale);
    BigDecimal bNumber = new BigDecimal(new BigInteger(b), bScale);
    BigDecimal result = aNumber.divide(bNumber, mc);
    assertEquals("incorrect value", c, result.toString());
    assertEquals("incorrect scale", resScale, result.scale());
}