Examples of java.math.BigDecimal.compareTo()

java.math.BigDecimal.compareTo()
Compares this {@code BigDecimal} with the specified{@code BigDecimal}. Two {@code BigDecimal} objects that areequal in value but have a different scale (like 2.0 and 2.00) are considered equal by this method. This method is provided in preference to individual methods for each of the six boolean comparison operators ( {@literal <}, ==, {@literal>}, {@literal >=}, !=, {@literal <=}). The suggested idiom for performing these comparisons is: {@code (x.compareTo(y)} <op> {@code 0)}, where <op> is one of the six comparison operators. @param val {@code BigDecimal} to which this {@code BigDecimal} is to be compared. @return -1, 0, or 1 as this {@code BigDecimal} is numerically less than, equal to, or greater than {@code val}.

        assertTrue(rs.getInt(1) == 1);
        assertTrue(!rs.wasNull());
        assertTrue(rs.getInt(2) == -1);
        assertTrue(!rs.wasNull());
        bd = rs.getBigDecimal(2);
        assertTrue(bd.compareTo(new BigDecimal("-1.00")) == 0);
        assertTrue(!rs.wasNull());
        o = rs.getObject(2);
        trace(o.getClass().getName());
        assertTrue(o instanceof BigDecimal);
        assertTrue(((BigDecimal) o).compareTo(new BigDecimal("-1.00")) == 0);

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        assertTrue(rs.getInt(1) == 2);
        assertTrue(!rs.wasNull());
        assertTrue(rs.getInt(2) == 0);
        assertTrue(!rs.wasNull());
        bd = rs.getBigDecimal(2);
        assertTrue(bd.compareTo(new BigDecimal("0.00")) == 0);
        assertTrue(!rs.wasNull());
        rs.next();
        checkColumnBigDecimal(rs, 2, 1, "1.00");
        rs.next();
        checkColumnBigDecimal(rs, 2, 12345679, "12345678.89");

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        assertTrue(!rs.wasNull());
        assertTrue(rs.getInt(2) == -1);
        assertTrue(rs.getInt(3) == -1);
        assertTrue(!rs.wasNull());
        bd = rs.getBigDecimal(2);
        assertTrue(bd.compareTo(new BigDecimal("-1.00")) == 0);
        assertTrue(!rs.wasNull());
        o = rs.getObject(2);
        trace(o.getClass().getName());
        assertTrue(o instanceof Double);
        assertTrue(((Double) o).compareTo(new Double("-1.00")) == 0);

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        assertTrue(rs.getInt(2) == 0);
        assertTrue(!rs.wasNull());
        assertTrue(rs.getInt(3) == 0);
        assertTrue(!rs.wasNull());
        bd = rs.getBigDecimal(2);
        assertTrue(bd.compareTo(new BigDecimal("0.00")) == 0);
        assertTrue(!rs.wasNull());
        bd = rs.getBigDecimal(3);
        assertTrue(bd.compareTo(new BigDecimal("0.00")) == 0);
        assertTrue(!rs.wasNull());
        rs.next();

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        assertTrue(!rs.wasNull());
        bd = rs.getBigDecimal(2);
        assertTrue(bd.compareTo(new BigDecimal("0.00")) == 0);
        assertTrue(!rs.wasNull());
        bd = rs.getBigDecimal(3);
        assertTrue(bd.compareTo(new BigDecimal("0.00")) == 0);
        assertTrue(!rs.wasNull());
        rs.next();
        assertEquals(1.0, rs.getDouble(2));
        assertEquals(1.0f, rs.getFloat(3));
        rs.next();

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            assertTrue(rs.wasNull());
        } else {
            trace("BigDecimal i=" + i + " bd=" + bd + " ; i1=" + i1 + " bd1=" + bd1);
            assertTrue(!rs.wasNull());
            assertTrue(i1 == i);
            assertTrue(bd1.compareTo(new BigDecimal(bd)) == 0);
        }
    }


}

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    public static void downto(BigInteger self, Number to, Closure closure) {
        if (to instanceof BigDecimal) {
            final BigDecimal one = BigDecimal.valueOf(10, 1);  // That's what you get for "1.0".
            final BigDecimal to1 = (BigDecimal) to;
            final BigDecimal selfD = new BigDecimal(self);
            if (selfD.compareTo(to1) >= 0) {
                for (BigDecimal i = selfD; i.compareTo(to1) >= 0; i = i.subtract(one)) {
                    closure.call(i.toBigInteger());
                }
            } else
                throw new GroovyRuntimeException("Infinite loop in " + self + ".downto(" + to + ")");

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        if (self instanceof BigDecimal || to instanceof BigDecimal || stepNumber instanceof BigDecimal) {
            final BigDecimal zero = BigDecimal.valueOf(0, 1);  // Same as "0.0".
            BigDecimal self1 = (self instanceof BigDecimal) ? (BigDecimal) self : new BigDecimal(self.toString());
            BigDecimal to1 = (to instanceof BigDecimal) ? (BigDecimal) to : new BigDecimal(to.toString());
            BigDecimal stepNumber1 = (stepNumber instanceof BigDecimal) ? (BigDecimal) stepNumber : new BigDecimal(stepNumber.toString());
            if (stepNumber1.compareTo(zero) > 0 && to1.compareTo(self1) > 0) {
                for (BigDecimal i = self1; i.compareTo(to1) < 0; i = i.add(stepNumber1)) {
                    closure.call(i);
                }
            } else if (stepNumber1.compareTo(zero) < 0 && to1.compareTo(self1) < 0) {
                for (BigDecimal i = self1; i.compareTo(to1) > 0; i = i.add(stepNumber1)) {

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            BigDecimal stepNumber1 = (stepNumber instanceof BigDecimal) ? (BigDecimal) stepNumber : new BigDecimal(stepNumber.toString());
            if (stepNumber1.compareTo(zero) > 0 && to1.compareTo(self1) > 0) {
                for (BigDecimal i = self1; i.compareTo(to1) < 0; i = i.add(stepNumber1)) {
                    closure.call(i);
                }
            } else if (stepNumber1.compareTo(zero) < 0 && to1.compareTo(self1) < 0) {
                for (BigDecimal i = self1; i.compareTo(to1) > 0; i = i.add(stepNumber1)) {
                    closure.call(i);
                }
            } else if(self1.compareTo(to1) != 0)
                throw new GroovyRuntimeException("Infinite loop in " + self1 + ".step(" + to1 + ", " + stepNumber1 + ")");

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        } else if (self instanceof BigInteger || to instanceof BigInteger || stepNumber instanceof BigInteger) {
            final BigInteger zero = BigInteger.valueOf(0);
            BigInteger self1 = (self instanceof BigInteger) ? (BigInteger) self : new BigInteger(self.toString());
            BigInteger to1 = (to instanceof BigInteger) ? (BigInteger) to : new BigInteger(to.toString());
            BigInteger stepNumber1 = (stepNumber instanceof BigInteger) ? (BigInteger) stepNumber : new BigInteger(stepNumber.toString());
            if (stepNumber1.compareTo(zero) > 0 && to1.compareTo(self1) > 0) {
                for (BigInteger i = self1; i.compareTo(to1) < 0; i = i.add(stepNumber1)) {
                    closure.call(i);
                }
            } else if (stepNumber1.compareTo(zero) < 0 && to1.compareTo(self1) < 0) {
                for (BigInteger i = self1; i.compareTo(to1) > 0; i = i.add(stepNumber1)) {

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