Java Code Examples for java.math.RoundingMode#HALF_DOWN
The following examples show how to use
java.math.RoundingMode#HALF_DOWN .
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Example 1
| Source File: BigDecimalArithmeticTest.java From j2objc with Apache License 2.0 | 6 votes |
|
/**
* 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());
}
Example 2
| Source File: TestResource.java From AVM with MIT License | 6 votes |
|
@Callable
public static boolean testShadowJDKEnum(){
boolean ret = true;
ret = ret && (RoundingMode.HALF_UP == RoundingMode.valueOf("HALF_UP"));
ret = ret && (RoundingMode.CEILING instanceof Object);
RoundingMode[] es = (RoundingMode[]) RoundingMode.values();
ret = ret && (es[0] == RoundingMode.UP);
ret = ret && (es[1] == RoundingMode.DOWN);
ret = ret && (es[2] == RoundingMode.CEILING);
ret = ret && (es[3] == RoundingMode.FLOOR);
ret = ret && (es[4] == RoundingMode.HALF_UP);
ret = ret && (es[5] == RoundingMode.HALF_DOWN);
ret = ret && (es[6] == RoundingMode.HALF_EVEN);
ret = ret && (es[7] == RoundingMode.UNNECESSARY);
return ret;
}
Example 3
| Source File: BigDecimalArithmeticTest.java From j2objc with Apache License 2.0 | 6 votes |
|
/**
* remainder(BigDecimal, MathContext)
*/
public void testRemainderMathContextHALF_DOWN() {
String a = "3736186567876876578956958765675671119238118911893939591735";
int aScale = -45;
String b = "134432345432345748766876876723342238476237823787879183470";
int bScale = 10;
int precision = 75;
RoundingMode rm = RoundingMode.HALF_DOWN;
MathContext mc = new MathContext(precision, rm);
String res = "1149310942946292909508821656680979993738625937.2065885780";
int resScale = 10;
BigDecimal aNumber = new BigDecimal(new BigInteger(a), aScale);
BigDecimal bNumber = new BigDecimal(new BigInteger(b), bScale);
BigDecimal result = aNumber.remainder(bNumber, mc);
assertEquals("incorrect quotient value", res, result.toString());
assertEquals("incorrect quotient scale", resScale, result.scale());
}
Example 4
| Source File: BigDecimalArithmeticTest.java From j2objc with Apache License 2.0 | 5 votes |
|
/**
* Multiply two numbers of positive scales using MathContext
*/
public void testMultiplyMathContextScalePosPos() {
String a = "97665696756578755423325476545428779810457634781384756794987";
int aScale = -25;
String b = "87656965586786097685674786576598865";
int bScale = 10;
String c = "8.561078619600910561431314228543672720908E+108";
int cScale = -69;
BigDecimal aNumber = new BigDecimal(new BigInteger(a), aScale);
BigDecimal bNumber = new BigDecimal(new BigInteger(b), bScale);
MathContext mc = new MathContext(40, RoundingMode.HALF_DOWN);
BigDecimal result = aNumber.multiply(bNumber, mc);
assertEquals("incorrect value", c, result.toString());
assertEquals("incorrect scale", cScale, result.scale());
}
Example 5
| Source File: BigDecimalArithmeticTest.java From j2objc with Apache License 2.0 | 5 votes |
|
/**
* Subtract two numbers of different scales using MathContext;
* the first is negative
*/
public void testSubtractMathContextDiffScaleNegPos() {
String a = "986798656676789766678767876078779810457634781384756794987";
int aScale = -15;
String b = "747233429293018787918347987234564568";
int bScale = 40;
String c = "9.867986566767897666787678760787798104576347813847567949870000000000000E+71";
int cScale = -2;
BigDecimal aNumber = new BigDecimal(new BigInteger(a), aScale);
BigDecimal bNumber = new BigDecimal(new BigInteger(b), bScale);
MathContext mc = new MathContext(70, RoundingMode.HALF_DOWN);
BigDecimal result = aNumber.subtract(bNumber, mc);
assertEquals("incorrect value", c, result.toString());
assertEquals("incorrect scale", cScale, result.scale());
}
Example 6
| Source File: BigDecimalArithmeticTest.java From j2objc with Apache License 2.0 | 5 votes |
|
/**
* round(BigDecimal, MathContext)
*/
public void testRoundMathContextHALF_DOWN() {
String a = "3736186567876876578956958765675671119238118911893939591735";
int aScale = -45;
int precision = 75;
RoundingMode rm = RoundingMode.HALF_DOWN;
MathContext mc = new MathContext(precision, rm);
String res = "3.736186567876876578956958765675671119238118911893939591735E+102";
int resScale = -45;
BigDecimal aNumber = new BigDecimal(new BigInteger(a), aScale);
BigDecimal result = aNumber.round(mc);
assertEquals("incorrect quotient value", res, result.toString());
assertEquals("incorrect quotient scale", resScale, result.scale());
}
Example 7
| Source File: BigDecimalArithmeticTest.java From j2objc with Apache License 2.0 | 5 votes |
|
/**
* divide(BigDecimal, scale, RoundingMode)
*/
public void testDivideBigDecimalScaleRoundingModeHALF_DOWN() {
String a = "3736186567876876578956958765675671119238118911893939591735";
int aScale = 5;
String b = "74723342238476237823787879183470";
int bScale = 15;
int newScale = 7;
RoundingMode rm = RoundingMode.HALF_DOWN;
String c = "500002603731642864013619132621009722.1803810";
BigDecimal aNumber = new BigDecimal(new BigInteger(a), aScale);
BigDecimal bNumber = new BigDecimal(new BigInteger(b), bScale);
BigDecimal result = aNumber.divide(bNumber, newScale, rm);
assertEquals("incorrect value", c, result.toString());
assertEquals("incorrect scale", newScale, result.scale());
}
Example 8
| Source File: BigDecimalTest.java From j2objc with Apache License 2.0 | 5 votes |
|
public void testMathContextConstruction() {
String a = "-12380945E+61";
BigDecimal aNumber = new BigDecimal(a);
int precision = 6;
RoundingMode rm = RoundingMode.HALF_DOWN;
MathContext mcIntRm = new MathContext(precision, rm);
MathContext mcStr = new MathContext("precision=6 roundingMode=HALF_DOWN");
MathContext mcInt = new MathContext(precision);
BigDecimal res = aNumber.abs(mcInt);
assertEquals("MathContext Constructer with int precision failed",
res,
new BigDecimal("1.23809E+68"));
assertEquals("Equal MathContexts are not Equal ",
mcIntRm,
mcStr);
assertEquals("Different MathContext are reported as Equal ",
mcInt.equals(mcStr),
false);
assertEquals("Equal MathContexts have different hashcodes ",
mcIntRm.hashCode(),
mcStr.hashCode());
assertEquals("MathContext.toString() returning incorrect value",
mcIntRm.toString(),
"precision=6 roundingMode=HALF_DOWN");
}
Example 9
| Source File: BigDecimalCompareTest.java From j2objc with Apache License 2.0 | 5 votes |
|
/**
* 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 10
| Source File: RoundingModeTests.java From openjdk-jdk9 with GNU General Public License v2.0 | 4 votes |
|
public static void main(String [] argv) {
// For each member of the family, make sure
// rm == valueOf(rm.toString())
for(RoundingMode rm: RoundingMode.values()) {
if (rm != RoundingMode.valueOf(rm.toString())) {
throw new RuntimeException("Bad roundtrip conversion of " +
rm.toString());
}
}
// Test that mapping of old integers to new values is correct
if (RoundingMode.valueOf(BigDecimal.ROUND_CEILING) !=
RoundingMode.CEILING) {
throw new RuntimeException("Bad mapping for ROUND_CEILING");
}
if (RoundingMode.valueOf(BigDecimal.ROUND_DOWN) !=
RoundingMode.DOWN) {
throw new RuntimeException("Bad mapping for ROUND_DOWN");
}
if (RoundingMode.valueOf(BigDecimal.ROUND_FLOOR) !=
RoundingMode.FLOOR) {
throw new RuntimeException("Bad mapping for ROUND_FLOOR");
}
if (RoundingMode.valueOf(BigDecimal.ROUND_HALF_DOWN) !=
RoundingMode.HALF_DOWN) {
throw new RuntimeException("Bad mapping for ROUND_HALF_DOWN");
}
if (RoundingMode.valueOf(BigDecimal.ROUND_HALF_EVEN) !=
RoundingMode.HALF_EVEN) {
throw new RuntimeException("Bad mapping for ROUND_HALF_EVEN");
}
if (RoundingMode.valueOf(BigDecimal.ROUND_HALF_UP) !=
RoundingMode.HALF_UP) {
throw new RuntimeException("Bad mapping for ROUND_HALF_UP");
}
if (RoundingMode.valueOf(BigDecimal.ROUND_UNNECESSARY) !=
RoundingMode.UNNECESSARY) {
throw new RuntimeException("Bad mapping for ROUND_UNNECESARY");
}
}
Example 11
| Source File: RoundingModeTests.java From jdk8u-jdk with GNU General Public License v2.0 | 4 votes |
|
public static void main(String [] argv) {
// For each member of the family, make sure
// rm == valueOf(rm.toString())
for(RoundingMode rm: RoundingMode.values()) {
if (rm != RoundingMode.valueOf(rm.toString())) {
throw new RuntimeException("Bad roundtrip conversion of " +
rm.toString());
}
}
// Test that mapping of old integers to new values is correct
if (RoundingMode.valueOf(BigDecimal.ROUND_CEILING) !=
RoundingMode.CEILING) {
throw new RuntimeException("Bad mapping for ROUND_CEILING");
}
if (RoundingMode.valueOf(BigDecimal.ROUND_DOWN) !=
RoundingMode.DOWN) {
throw new RuntimeException("Bad mapping for ROUND_DOWN");
}
if (RoundingMode.valueOf(BigDecimal.ROUND_FLOOR) !=
RoundingMode.FLOOR) {
throw new RuntimeException("Bad mapping for ROUND_FLOOR");
}
if (RoundingMode.valueOf(BigDecimal.ROUND_HALF_DOWN) !=
RoundingMode.HALF_DOWN) {
throw new RuntimeException("Bad mapping for ROUND_HALF_DOWN");
}
if (RoundingMode.valueOf(BigDecimal.ROUND_HALF_EVEN) !=
RoundingMode.HALF_EVEN) {
throw new RuntimeException("Bad mapping for ROUND_HALF_EVEN");
}
if (RoundingMode.valueOf(BigDecimal.ROUND_HALF_UP) !=
RoundingMode.HALF_UP) {
throw new RuntimeException("Bad mapping for ROUND_HALF_UP");
}
if (RoundingMode.valueOf(BigDecimal.ROUND_UNNECESSARY) !=
RoundingMode.UNNECESSARY) {
throw new RuntimeException("Bad mapping for ROUND_UNNECESARY");
}
}
Example 12
| Source File: RoundingModeTests.java From hottub with GNU General Public License v2.0 | 4 votes |
|
public static void main(String [] argv) {
// For each member of the family, make sure
// rm == valueOf(rm.toString())
for(RoundingMode rm: RoundingMode.values()) {
if (rm != RoundingMode.valueOf(rm.toString())) {
throw new RuntimeException("Bad roundtrip conversion of " +
rm.toString());
}
}
// Test that mapping of old integers to new values is correct
if (RoundingMode.valueOf(BigDecimal.ROUND_CEILING) !=
RoundingMode.CEILING) {
throw new RuntimeException("Bad mapping for ROUND_CEILING");
}
if (RoundingMode.valueOf(BigDecimal.ROUND_DOWN) !=
RoundingMode.DOWN) {
throw new RuntimeException("Bad mapping for ROUND_DOWN");
}
if (RoundingMode.valueOf(BigDecimal.ROUND_FLOOR) !=
RoundingMode.FLOOR) {
throw new RuntimeException("Bad mapping for ROUND_FLOOR");
}
if (RoundingMode.valueOf(BigDecimal.ROUND_HALF_DOWN) !=
RoundingMode.HALF_DOWN) {
throw new RuntimeException("Bad mapping for ROUND_HALF_DOWN");
}
if (RoundingMode.valueOf(BigDecimal.ROUND_HALF_EVEN) !=
RoundingMode.HALF_EVEN) {
throw new RuntimeException("Bad mapping for ROUND_HALF_EVEN");
}
if (RoundingMode.valueOf(BigDecimal.ROUND_HALF_UP) !=
RoundingMode.HALF_UP) {
throw new RuntimeException("Bad mapping for ROUND_HALF_UP");
}
if (RoundingMode.valueOf(BigDecimal.ROUND_UNNECESSARY) !=
RoundingMode.UNNECESSARY) {
throw new RuntimeException("Bad mapping for ROUND_UNNECESARY");
}
}
Example 13
| Source File: RoundingModeTests.java From openjdk-8 with GNU General Public License v2.0 | 4 votes |
|
public static void main(String [] argv) {
// For each member of the family, make sure
// rm == valueOf(rm.toString())
for(RoundingMode rm: RoundingMode.values()) {
if (rm != RoundingMode.valueOf(rm.toString())) {
throw new RuntimeException("Bad roundtrip conversion of " +
rm.toString());
}
}
// Test that mapping of old integers to new values is correct
if (RoundingMode.valueOf(BigDecimal.ROUND_CEILING) !=
RoundingMode.CEILING) {
throw new RuntimeException("Bad mapping for ROUND_CEILING");
}
if (RoundingMode.valueOf(BigDecimal.ROUND_DOWN) !=
RoundingMode.DOWN) {
throw new RuntimeException("Bad mapping for ROUND_DOWN");
}
if (RoundingMode.valueOf(BigDecimal.ROUND_FLOOR) !=
RoundingMode.FLOOR) {
throw new RuntimeException("Bad mapping for ROUND_FLOOR");
}
if (RoundingMode.valueOf(BigDecimal.ROUND_HALF_DOWN) !=
RoundingMode.HALF_DOWN) {
throw new RuntimeException("Bad mapping for ROUND_HALF_DOWN");
}
if (RoundingMode.valueOf(BigDecimal.ROUND_HALF_EVEN) !=
RoundingMode.HALF_EVEN) {
throw new RuntimeException("Bad mapping for ROUND_HALF_EVEN");
}
if (RoundingMode.valueOf(BigDecimal.ROUND_HALF_UP) !=
RoundingMode.HALF_UP) {
throw new RuntimeException("Bad mapping for ROUND_HALF_UP");
}
if (RoundingMode.valueOf(BigDecimal.ROUND_UNNECESSARY) !=
RoundingMode.UNNECESSARY) {
throw new RuntimeException("Bad mapping for ROUND_UNNECESARY");
}
}
Example 14
| Source File: RoundingModeTests.java From openjdk-jdk8u-backup with GNU General Public License v2.0 | 4 votes |
|
public static void main(String [] argv) {
// For each member of the family, make sure
// rm == valueOf(rm.toString())
for(RoundingMode rm: RoundingMode.values()) {
if (rm != RoundingMode.valueOf(rm.toString())) {
throw new RuntimeException("Bad roundtrip conversion of " +
rm.toString());
}
}
// Test that mapping of old integers to new values is correct
if (RoundingMode.valueOf(BigDecimal.ROUND_CEILING) !=
RoundingMode.CEILING) {
throw new RuntimeException("Bad mapping for ROUND_CEILING");
}
if (RoundingMode.valueOf(BigDecimal.ROUND_DOWN) !=
RoundingMode.DOWN) {
throw new RuntimeException("Bad mapping for ROUND_DOWN");
}
if (RoundingMode.valueOf(BigDecimal.ROUND_FLOOR) !=
RoundingMode.FLOOR) {
throw new RuntimeException("Bad mapping for ROUND_FLOOR");
}
if (RoundingMode.valueOf(BigDecimal.ROUND_HALF_DOWN) !=
RoundingMode.HALF_DOWN) {
throw new RuntimeException("Bad mapping for ROUND_HALF_DOWN");
}
if (RoundingMode.valueOf(BigDecimal.ROUND_HALF_EVEN) !=
RoundingMode.HALF_EVEN) {
throw new RuntimeException("Bad mapping for ROUND_HALF_EVEN");
}
if (RoundingMode.valueOf(BigDecimal.ROUND_HALF_UP) !=
RoundingMode.HALF_UP) {
throw new RuntimeException("Bad mapping for ROUND_HALF_UP");
}
if (RoundingMode.valueOf(BigDecimal.ROUND_UNNECESSARY) !=
RoundingMode.UNNECESSARY) {
throw new RuntimeException("Bad mapping for ROUND_UNNECESARY");
}
}
Example 15
| Source File: RoundingModeTests.java From jdk8u60 with GNU General Public License v2.0 | 4 votes |
|
public static void main(String [] argv) {
// For each member of the family, make sure
// rm == valueOf(rm.toString())
for(RoundingMode rm: RoundingMode.values()) {
if (rm != RoundingMode.valueOf(rm.toString())) {
throw new RuntimeException("Bad roundtrip conversion of " +
rm.toString());
}
}
// Test that mapping of old integers to new values is correct
if (RoundingMode.valueOf(BigDecimal.ROUND_CEILING) !=
RoundingMode.CEILING) {
throw new RuntimeException("Bad mapping for ROUND_CEILING");
}
if (RoundingMode.valueOf(BigDecimal.ROUND_DOWN) !=
RoundingMode.DOWN) {
throw new RuntimeException("Bad mapping for ROUND_DOWN");
}
if (RoundingMode.valueOf(BigDecimal.ROUND_FLOOR) !=
RoundingMode.FLOOR) {
throw new RuntimeException("Bad mapping for ROUND_FLOOR");
}
if (RoundingMode.valueOf(BigDecimal.ROUND_HALF_DOWN) !=
RoundingMode.HALF_DOWN) {
throw new RuntimeException("Bad mapping for ROUND_HALF_DOWN");
}
if (RoundingMode.valueOf(BigDecimal.ROUND_HALF_EVEN) !=
RoundingMode.HALF_EVEN) {
throw new RuntimeException("Bad mapping for ROUND_HALF_EVEN");
}
if (RoundingMode.valueOf(BigDecimal.ROUND_HALF_UP) !=
RoundingMode.HALF_UP) {
throw new RuntimeException("Bad mapping for ROUND_HALF_UP");
}
if (RoundingMode.valueOf(BigDecimal.ROUND_UNNECESSARY) !=
RoundingMode.UNNECESSARY) {
throw new RuntimeException("Bad mapping for ROUND_UNNECESARY");
}
}
Example 16
| Source File: RoundingModeTests.java From jdk8u-jdk with GNU General Public License v2.0 | 4 votes |
|
public static void main(String [] argv) {
// For each member of the family, make sure
// rm == valueOf(rm.toString())
for(RoundingMode rm: RoundingMode.values()) {
if (rm != RoundingMode.valueOf(rm.toString())) {
throw new RuntimeException("Bad roundtrip conversion of " +
rm.toString());
}
}
// Test that mapping of old integers to new values is correct
if (RoundingMode.valueOf(BigDecimal.ROUND_CEILING) !=
RoundingMode.CEILING) {
throw new RuntimeException("Bad mapping for ROUND_CEILING");
}
if (RoundingMode.valueOf(BigDecimal.ROUND_DOWN) !=
RoundingMode.DOWN) {
throw new RuntimeException("Bad mapping for ROUND_DOWN");
}
if (RoundingMode.valueOf(BigDecimal.ROUND_FLOOR) !=
RoundingMode.FLOOR) {
throw new RuntimeException("Bad mapping for ROUND_FLOOR");
}
if (RoundingMode.valueOf(BigDecimal.ROUND_HALF_DOWN) !=
RoundingMode.HALF_DOWN) {
throw new RuntimeException("Bad mapping for ROUND_HALF_DOWN");
}
if (RoundingMode.valueOf(BigDecimal.ROUND_HALF_EVEN) !=
RoundingMode.HALF_EVEN) {
throw new RuntimeException("Bad mapping for ROUND_HALF_EVEN");
}
if (RoundingMode.valueOf(BigDecimal.ROUND_HALF_UP) !=
RoundingMode.HALF_UP) {
throw new RuntimeException("Bad mapping for ROUND_HALF_UP");
}
if (RoundingMode.valueOf(BigDecimal.ROUND_UNNECESSARY) !=
RoundingMode.UNNECESSARY) {
throw new RuntimeException("Bad mapping for ROUND_UNNECESARY");
}
}
Example 17
| Source File: RoundingModeTests.java From native-obfuscator with GNU General Public License v3.0 | 4 votes |
|
public static void main(String [] argv) {
// For each member of the family, make sure
// rm == valueOf(rm.toString())
for(RoundingMode rm: RoundingMode.values()) {
if (rm != RoundingMode.valueOf(rm.toString())) {
throw new RuntimeException("Bad roundtrip conversion of " +
rm.toString());
}
}
// Test that mapping of old integers to new values is correct
if (RoundingMode.valueOf(BigDecimal.ROUND_CEILING) !=
RoundingMode.CEILING) {
throw new RuntimeException("Bad mapping for ROUND_CEILING");
}
if (RoundingMode.valueOf(BigDecimal.ROUND_DOWN) !=
RoundingMode.DOWN) {
throw new RuntimeException("Bad mapping for ROUND_DOWN");
}
if (RoundingMode.valueOf(BigDecimal.ROUND_FLOOR) !=
RoundingMode.FLOOR) {
throw new RuntimeException("Bad mapping for ROUND_FLOOR");
}
if (RoundingMode.valueOf(BigDecimal.ROUND_HALF_DOWN) !=
RoundingMode.HALF_DOWN) {
throw new RuntimeException("Bad mapping for ROUND_HALF_DOWN");
}
if (RoundingMode.valueOf(BigDecimal.ROUND_HALF_EVEN) !=
RoundingMode.HALF_EVEN) {
throw new RuntimeException("Bad mapping for ROUND_HALF_EVEN");
}
if (RoundingMode.valueOf(BigDecimal.ROUND_HALF_UP) !=
RoundingMode.HALF_UP) {
throw new RuntimeException("Bad mapping for ROUND_HALF_UP");
}
if (RoundingMode.valueOf(BigDecimal.ROUND_UNNECESSARY) !=
RoundingMode.UNNECESSARY) {
throw new RuntimeException("Bad mapping for ROUND_UNNECESARY");
}
}
Example 18
| Source File: RoundingModeTests.java From TencentKona-8 with GNU General Public License v2.0 | 4 votes |
|
public static void main(String [] argv) {
// For each member of the family, make sure
// rm == valueOf(rm.toString())
for(RoundingMode rm: RoundingMode.values()) {
if (rm != RoundingMode.valueOf(rm.toString())) {
throw new RuntimeException("Bad roundtrip conversion of " +
rm.toString());
}
}
// Test that mapping of old integers to new values is correct
if (RoundingMode.valueOf(BigDecimal.ROUND_CEILING) !=
RoundingMode.CEILING) {
throw new RuntimeException("Bad mapping for ROUND_CEILING");
}
if (RoundingMode.valueOf(BigDecimal.ROUND_DOWN) !=
RoundingMode.DOWN) {
throw new RuntimeException("Bad mapping for ROUND_DOWN");
}
if (RoundingMode.valueOf(BigDecimal.ROUND_FLOOR) !=
RoundingMode.FLOOR) {
throw new RuntimeException("Bad mapping for ROUND_FLOOR");
}
if (RoundingMode.valueOf(BigDecimal.ROUND_HALF_DOWN) !=
RoundingMode.HALF_DOWN) {
throw new RuntimeException("Bad mapping for ROUND_HALF_DOWN");
}
if (RoundingMode.valueOf(BigDecimal.ROUND_HALF_EVEN) !=
RoundingMode.HALF_EVEN) {
throw new RuntimeException("Bad mapping for ROUND_HALF_EVEN");
}
if (RoundingMode.valueOf(BigDecimal.ROUND_HALF_UP) !=
RoundingMode.HALF_UP) {
throw new RuntimeException("Bad mapping for ROUND_HALF_UP");
}
if (RoundingMode.valueOf(BigDecimal.ROUND_UNNECESSARY) !=
RoundingMode.UNNECESSARY) {
throw new RuntimeException("Bad mapping for ROUND_UNNECESARY");
}
}
Example 19
| Source File: MathContextTest.java From j2objc with Apache License 2.0 | 4 votes |
|
/**
* java.math.MathContext#MathContext(...)
*/
public void test_MathContextConstruction() {
String a = "-12380945E+61";
BigDecimal aNumber = new BigDecimal(a);
MathContext mcIntRm6hd = new MathContext(6, RoundingMode.HALF_DOWN);
MathContext mcStr6hd = new MathContext("precision=6 roundingMode=HALF_DOWN");
MathContext mcInt6 = new MathContext(6);
MathContext mcInt134 = new MathContext(134);
// getPrecision()
assertEquals("MathContext.getPrecision() returns incorrect value",
6, mcIntRm6hd.getPrecision() );
assertEquals("MathContext.getPrecision() returns incorrect value",
134, mcInt134.getPrecision() );
// getRoundingMode()
assertEquals("MathContext.getRoundingMode() returns incorrect value",
RoundingMode.HALF_UP,
mcInt6.getRoundingMode());
assertEquals("MathContext.getRoundingMode() returns incorrect value",
RoundingMode.HALF_DOWN, mcIntRm6hd.getRoundingMode() );
// toString()
assertEquals("MathContext.toString() returning incorrect value",
"precision=6 roundingMode=HALF_DOWN", mcIntRm6hd.toString() );
assertEquals("MathContext.toString() returning incorrect value",
"precision=6 roundingMode=HALF_UP", mcInt6.toString() );
// equals(.)
assertEquals("Equal MathContexts are not equal ",
mcIntRm6hd, mcStr6hd );
assertFalse("Different MathContexts are reported as equal ",
mcInt6.equals(mcStr6hd) );
assertFalse("Different MathContexts are reported as equal ",
mcInt6.equals(mcInt134) );
// hashCode(.)
assertEquals("Equal MathContexts have different hashcodes ",
mcIntRm6hd.hashCode(), mcStr6hd.hashCode() );
assertFalse("Different MathContexts have equal hashcodes ",
mcInt6.hashCode() == mcStr6hd.hashCode() );
assertFalse("Different MathContexts have equal hashcodes ",
mcInt6.hashCode() == mcInt134.hashCode() );
// other:
BigDecimal res = aNumber.abs(mcInt6);
assertEquals("MathContext Constructor with int precision failed",
new BigDecimal("1.23809E+68"),
res);
}
Example 20
| Source File: AngleFormat.java From sis with Apache License 2.0 | 3 votes |
|
/**
* Sets the rounding mode to the specified value. The given mode can be one of the following:
*
* <table class="sis">
* <caption>Supported rounding modes</caption>
* <tr><th>Rounding mode</th> <th>Result</th></tr>
* <tr><td>{@link RoundingMode#UP UP}</td> <td>Round away from zero.</td></tr>
* <tr><td>{@link RoundingMode#DOWN DOWN}</td> <td>Round towards zero.</td></tr>
* <tr><td>{@link RoundingMode#CEILING CEILING}</td> <td>Round towards positive infinity.</td></tr>
* <tr><td>{@link RoundingMode#FLOOR FLOOR}</td> <td>Round towards negative infinity.</td></tr>
* <tr><td>{@link RoundingMode#HALF_EVEN HALF_EVEN}</td> <td>Round towards nearest neighbor.</td></tr>
* </table>
*
* The {@link RoundingMode#HALF_UP} and {@link RoundingMode#HALF_DOWN HALF_DOWN} values are not supported
* by the current {@code AngleFormat} implementation.
*
* @param mode the new rounding mode.
*
* @see NumberFormat#setRoundingMode(RoundingMode)
*
* @since 0.8
*/
public void setRoundingMode(final RoundingMode mode) {
ArgumentChecks.ensureNonNull("mode", mode);
if (mode == RoundingMode.HALF_UP || mode == RoundingMode.HALF_DOWN) {
throw new IllegalArgumentException(Errors.format(Errors.Keys.UnsupportedArgumentValue_1, mode));
}
roundingMode = mode;
}
