Package java.math

Examples of java.math.RoundingMode

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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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     */
    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 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 testNegateMathContextPositive() {
       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 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);
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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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    public void testConstrCharIntIntMathContext() {
        char value[] = {'-', '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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    public void testConstrCharIntIntMathContextException1() {
        char value[] = {'-', '1', '2', '3', '8', '0', '.', '4', '7', '3', '8', 'E', '-', '4', '2', '3'};
        int offset = 3;
        int len = 120;
        int precision = 4;
        RoundingMode rm = RoundingMode.CEILING;
        MathContext mc = new MathContext(precision, rm);
        try {
            new BigDecimal(value, offset, len, mc);
            fail("NumberFormatException has not been thrown");
        } catch (NumberFormatException e) {
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    public void testConstrCharIntIntMathContextException2() {
        char value[] = {'-', '1', '2', '3', '8', '0', ',', '4', '7', '3', '8', 'E', '-', '4', '2', '3'};
        int offset = 3;
        int len = 120;
        int precision = 4;
        RoundingMode rm = RoundingMode.CEILING;
        MathContext mc = new MathContext(precision, rm);
        try {
            new BigDecimal(value, offset, len, mc);
            fail("NumberFormatException has not been thrown");
        } catch (NumberFormatException e) {
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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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