Package java.math

Examples of java.math.RoundingMode

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     */
    public void testRoundMathContextPrecision0() {
        String a = "3736186567876876578956958765675671119238118911893939591735";
        int aScale = 45;
        int precision = 0;
        RoundingMode rm = RoundingMode.HALF_UP;
        MathContext mc = new MathContext(precision, rm);
        String res = "3736186567876.876578956958765675671119238118911893939591735";
        BigDecimal aNumber = new BigDecimal(new BigInteger(a), aScale);
        BigDecimal result = aNumber.round(mc);
        assertEquals("incorrect quotient value", res, result.toString());
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   */
  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());
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   */
  public void testAbsMathContextPos() {
    String a = "123809648392384754573567356745735.63567890295784902768787678287E+21";
    BigDecimal aNumber = new BigDecimal(a);
    int precision = 41;
    RoundingMode rm = RoundingMode.HALF_EVEN;
    MathContext mc = new MathContext(precision, rm);
    String result = "1.2380964839238475457356735674573563567890E+53";
    int resScale = -13;
    BigDecimal res = aNumber.abs(mc);
    assertEquals("incorrect value", result, res.toString());
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      return;
    }
    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);
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      return;
    }
    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.negate(mc);
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   */
  public void testPlusMathContextNegative() {
    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.plus(mc);
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   */
  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);
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   */
  public void testConstrBigIntegerMathContext() {
    String a = "1231212478987482988429808779810457634781384756794987";
    BigInteger bA = new BigInteger(a);
    int precision = 46;
    RoundingMode rm = RoundingMode.CEILING;
    MathContext mc = new MathContext(precision, rm);
    String res = "1231212478987482988429808779810457634781384757";
    int resScale = -6;
    BigDecimal result = new BigDecimal(bA, mc);
    assertEquals("incorrect value", res, result.unscaledValue().toString());
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  public void testConstrBigIntegerScaleMathContext() {
    String a = "1231212478987482988429808779810457634781384756794987";
    BigInteger bA = new BigInteger(a);
    int aScale = 10;
    int precision = 46;
    RoundingMode rm = RoundingMode.CEILING;
    MathContext mc = new MathContext(precision, rm);
    String res = "1231212478987482988429808779810457634781384757";
    int resScale = 4;
    BigDecimal result = new BigDecimal(bA, aScale, mc);
    assertEquals("incorrect value", res, result.unscaledValue().toString());
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        '-', '1', '2', '3', '8', '0', '.', '4', '7', '3', '8', 'E', '-', '4',
        '2', '3'};
    int offset = 3;
    int len = 12;
    int precision = 4;
    RoundingMode rm = RoundingMode.CEILING;
    MathContext mc = new MathContext(precision, rm);
    BigDecimal result = new BigDecimal(value, offset, len, mc);
    String res = "3.805E-40";
    int resScale = 43;
    assertEquals("incorrect value", res, result.toString());
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Related Classes of java.math.RoundingMode

  • com.google.gwt.emultest.java.math.BigDecimalArithmeticTest
  • com.google.gwt.emultest.java.math.BigDecimalCompareTest
  • com.google.gwt.emultest.java.math.BigDecimalConstructorsTest
  • hirondelle.web4j.Controller
  • org.apache.harmony.tests.java.math.BigDecimalArithmeticTest
  • org.apache.harmony.tests.java.math.BigDecimalCompareTest
  • org.apache.harmony.tests.java.math.BigDecimalConstructorsTest
  • org.apache.pig.builtin.DoubleRoundTo
  • org.apache.pig.builtin.FloatRoundTo
  • org.apache.pig.builtin.ROUND_TO
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