Examples with DecimalFormat android.icu.text.DecimalFormat used on opensource projects

Example 6 with DecimalFormat

use of android.icu.text.DecimalFormat in project j2objc by google.

the class IntlTestDecimalFormatAPI method testJB1871.

/**
 * Problem 1: simply running
 * decF4.setRoundingMode(java.math.BigDecimal.ROUND_HALF_UP) does not work
 * as decF4.setRoundingIncrement(.0001) must also be run.
 * Problem 2: decF4.format(8.88885) does not return 8.8889 as expected.
 * You must run decF4.format(new BigDecimal(Double.valueOf(8.88885))) in
 * order for this to work as expected.
 * Problem 3: There seems to be no way to set half up to be the default
 * rounding mode.
 * We solved the problem with the code at the bottom of this page however
 * this is not quite general purpose enough to include in icu4j. A static
 * setDefaultRoundingMode function would solve the problem nicely. Also
 * decimal places past 20 are not handled properly. A small ammount of work
 * would make bring this up to snuff.
 */
@Test
public void testJB1871() {
    // problem 2
    double number = 8.88885;
    String expected = "8.8889";
    String pat = ",##0.0000";
    DecimalFormat dec = new DecimalFormat(pat);
    dec.setRoundingMode(BigDecimal.ROUND_HALF_UP);
    double roundinginc = 0.0001;
    dec.setRoundingIncrement(roundinginc);
    String str = dec.format(number);
    if (!str.equals(expected)) {
        errln("Fail: " + number + " x \"" + pat + "\" = \"" + str + "\", expected \"" + expected + "\"");
    }
    pat = ",##0.0001";
    dec = new DecimalFormat(pat);
    dec.setRoundingMode(BigDecimal.ROUND_HALF_UP);
    str = dec.format(number);
    if (!str.equals(expected)) {
        errln("Fail: " + number + " x \"" + pat + "\" = \"" + str + "\", expected \"" + expected + "\"");
    }
    // testing 20 decimal places
    pat = ",##0.00000000000000000001";
    dec = new DecimalFormat(pat);
    BigDecimal bignumber = new BigDecimal("8.888888888888888888885");
    expected = "8.88888888888888888889";
    dec.setRoundingMode(BigDecimal.ROUND_HALF_UP);
    str = dec.format(bignumber);
    if (!str.equals(expected)) {
        errln("Fail: " + bignumber + " x \"" + pat + "\" = \"" + str + "\", expected \"" + expected + "\"");
    }
}

Example 7 with DecimalFormat

use of android.icu.text.DecimalFormat in project j2objc by google.

the class IntlTestNumberFormat method _testFormat.

/**
 * call tryIt with many variations, called by testLocale
 */
private void _testFormat() {
    if (fNumberFormat == null) {
        errln("**** FAIL: Null format returned by createXxxInstance.");
        return;
    }
    DecimalFormat s = (DecimalFormat) fNumberFormat;
    logln("pattern :" + s.toPattern());
    tryIt(-2.02147304840132e-68);
    tryIt(3.88057859588817e-68);
    tryIt(-2.64651110485945e+65);
    tryIt(9.29526819488338e+64);
    tryIt(-2.02147304840132e-100);
    tryIt(3.88057859588817e-096);
    tryIt(-2.64651110485945e+306);
    tryIt(9.29526819488338e+250);
    tryIt(-9.18228054496402e+64);
    tryIt(-9.69413034454191e+64);
    tryIt(-9.18228054496402e+255);
    tryIt(-9.69413034454191e+273);
    tryIt(1.234e-200);
    tryIt(-2.3e-168);
    tryIt(Double.NaN);
    tryIt(Double.POSITIVE_INFINITY);
    tryIt(Double.NEGATIVE_INFINITY);
    tryIt(251887531);
    tryIt(5e-20 / 9);
    tryIt(5e20 / 9);
    tryIt(1.234e-50);
    tryIt(9.99999999999996);
    tryIt(9.999999999999996);
    tryIt(5.06e-27);
    tryIt(Integer.MIN_VALUE);
    tryIt(Integer.MAX_VALUE);
    tryIt((double) Integer.MIN_VALUE);
    tryIt((double) Integer.MAX_VALUE);
    tryIt((double) Integer.MIN_VALUE - 1.0);
    tryIt((double) Integer.MAX_VALUE + 1.0);
    tryIt(5.0 / 9.0 * 1e-20);
    tryIt(4.0 / 9.0 * 1e-20);
    tryIt(5.0 / 9.0 * 1e+20);
    tryIt(4.0 / 9.0 * 1e+20);
    tryIt(2147483647.);
    tryIt(0);
    tryIt(0.0);
    tryIt(1);
    tryIt(10);
    tryIt(100);
    tryIt(-1);
    tryIt(-10);
    tryIt(-100);
    tryIt(-1913860352);
    // use test framework's random seed
    Random random = createRandom();
    for (int j = 0; j < 10; j++) {
        double d = random.nextDouble() * 2e10 - 1e10;
        tryIt(d);
    }
}

Example 8 with DecimalFormat

use of android.icu.text.DecimalFormat in project j2objc by google.

the class IntlTestDecimalFormatAPIC method testFormatToCharacterIterator.

@Test
public void testFormatToCharacterIterator() {
    Number number = new Double(350.76);
    Number negativeNumber = new Double(-350.76);
    Locale us = Locale.US;
    // test number instance
    t_Format(1, number, NumberFormat.getNumberInstance(us), getNumberVectorUS());
    // test percent instance
    t_Format(3, number, NumberFormat.getPercentInstance(us), getPercentVectorUS());
    // test permille pattern
    DecimalFormat format = new DecimalFormat("###0.##\u2030");
    t_Format(4, number, format, getPermilleVector());
    // test exponential pattern with positive exponent
    format = new DecimalFormat("00.0#E0");
    t_Format(5, number, format, getPositiveExponentVector());
    // test exponential pattern with negative exponent
    format = new DecimalFormat("0000.0#E0");
    t_Format(6, number, format, getNegativeExponentVector());
    // test currency instance with US Locale
    t_Format(7, number, NumberFormat.getCurrencyInstance(us), getPositiveCurrencyVectorUS());
    // test negative currency instance with US Locale
    t_Format(8, negativeNumber, NumberFormat.getCurrencyInstance(us), getNegativeCurrencyVectorUS());
    // test multiple grouping separators
    number = new Long(100300400);
    t_Format(11, number, NumberFormat.getNumberInstance(us), getNumberVector2US());
    // test 0
    number = new Long(0);
    t_Format(12, number, NumberFormat.getNumberInstance(us), getZeroVector());
}

Example 9 with DecimalFormat

use of android.icu.text.DecimalFormat in project j2objc by google.

the class IntlTestDecimalFormatAPIC method TestAPI.

// This test checks various generic API methods in DecimalFormat to achieve 100% API coverage.
@Test
public void TestAPI() {
    logln("DecimalFormat API test---");
    logln("");
    Locale.setDefault(Locale.ENGLISH);
    // ======= Test constructors
    logln("Testing DecimalFormat constructors");
    DecimalFormat def = new DecimalFormat();
    final String pattern = new String("#,##0.# FF");
    final DecimalFormatSymbols symbols = new DecimalFormatSymbols(Locale.FRENCH);
    final CurrencyPluralInfo infoInput = new CurrencyPluralInfo(ULocale.FRENCH);
    DecimalFormat pat = null;
    try {
        pat = new DecimalFormat(pattern);
    } catch (IllegalArgumentException e) {
        errln("ERROR: Could not create DecimalFormat (pattern)");
    }
    DecimalFormat cust1 = null;
    try {
        cust1 = new DecimalFormat(pattern, symbols);
    } catch (IllegalArgumentException e) {
        errln("ERROR: Could not create DecimalFormat (pattern, symbols)");
    }
    @SuppressWarnings("unused") DecimalFormat cust2 = null;
    try {
        cust2 = new DecimalFormat(pattern, symbols, infoInput, NumberFormat.PLURALCURRENCYSTYLE);
    } catch (IllegalArgumentException e) {
        errln("ERROR: Could not create DecimalFormat (pattern, symbols, infoInput, style)");
    }
    // ======= Test clone(), assignment, and equality
    logln("Testing clone() and equality operators");
    Format clone = (Format) def.clone();
    if (!def.equals(clone)) {
        errln("ERROR: Clone() failed");
    }
    // ======= Test various format() methods
    logln("Testing various format() methods");
    // final double d = -10456.0037; // this appears as -10456.003700000001 on NT
    // final double d = -1.04560037e-4; // this appears as -1.0456003700000002E-4 on NT
    // this works!
    final double d = -10456.00370000000000;
    final long l = 100000000;
    logln("" + Double.toString(d) + " is the double value");
    StringBuffer res1 = new StringBuffer();
    StringBuffer res2 = new StringBuffer();
    StringBuffer res3 = new StringBuffer();
    StringBuffer res4 = new StringBuffer();
    FieldPosition pos1 = new FieldPosition(0);
    FieldPosition pos2 = new FieldPosition(0);
    FieldPosition pos3 = new FieldPosition(0);
    FieldPosition pos4 = new FieldPosition(0);
    res1 = def.format(d, res1, pos1);
    logln("" + Double.toString(d) + " formatted to " + res1);
    res2 = pat.format(l, res2, pos2);
    logln("" + l + " formatted to " + res2);
    res3 = cust1.format(d, res3, pos3);
    logln("" + Double.toString(d) + " formatted to " + res3);
    res4 = cust1.format(l, res4, pos4);
    logln("" + l + " formatted to " + res4);
    // ======= Test parse()
    logln("Testing parse()");
    String text = new String("-10,456.0037");
    ParsePosition pos = new ParsePosition(0);
    String patt = new String("#,##0.#");
    pat.applyPattern(patt);
    double d2 = pat.parse(text, pos).doubleValue();
    if (d2 != d) {
        errln("ERROR: Roundtrip failed (via parse(" + Double.toString(d2) + " != " + Double.toString(d) + ")) for " + text);
    }
    logln(text + " parsed into " + (long) d2);
    // ======= Test getters and setters
    logln("Testing getters and setters");
    final DecimalFormatSymbols syms = pat.getDecimalFormatSymbols();
    def.setDecimalFormatSymbols(syms);
    if (!pat.getDecimalFormatSymbols().equals(def.getDecimalFormatSymbols())) {
        errln("ERROR: set DecimalFormatSymbols() failed");
    }
    String posPrefix;
    pat.setPositivePrefix("+");
    posPrefix = pat.getPositivePrefix();
    logln("Positive prefix (should be +): " + posPrefix);
    if (posPrefix != "+") {
        errln("ERROR: setPositivePrefix() failed");
    }
    String negPrefix;
    pat.setNegativePrefix("-");
    negPrefix = pat.getNegativePrefix();
    logln("Negative prefix (should be -): " + negPrefix);
    if (negPrefix != "-") {
        errln("ERROR: setNegativePrefix() failed");
    }
    String posSuffix;
    pat.setPositiveSuffix("_");
    posSuffix = pat.getPositiveSuffix();
    logln("Positive suffix (should be _): " + posSuffix);
    if (posSuffix != "_") {
        errln("ERROR: setPositiveSuffix() failed");
    }
    String negSuffix;
    pat.setNegativeSuffix("~");
    negSuffix = pat.getNegativeSuffix();
    logln("Negative suffix (should be ~): " + negSuffix);
    if (negSuffix != "~") {
        errln("ERROR: setNegativeSuffix() failed");
    }
    long multiplier = 0;
    pat.setMultiplier(8);
    multiplier = pat.getMultiplier();
    logln("Multiplier (should be 8): " + multiplier);
    if (multiplier != 8) {
        errln("ERROR: setMultiplier() failed");
    }
    int groupingSize = 0;
    pat.setGroupingSize(2);
    groupingSize = pat.getGroupingSize();
    logln("Grouping size (should be 2): " + (long) groupingSize);
    if (groupingSize != 2) {
        errln("ERROR: setGroupingSize() failed");
    }
    pat.setDecimalSeparatorAlwaysShown(true);
    boolean tf = pat.isDecimalSeparatorAlwaysShown();
    logln("DecimalSeparatorIsAlwaysShown (should be true) is " + (tf ? "true" : "false"));
    if (tf != true) {
        errln("ERROR: setDecimalSeparatorAlwaysShown() failed");
    }
    String funkyPat;
    funkyPat = pat.toPattern();
    logln("Pattern is " + funkyPat);
    String locPat;
    locPat = pat.toLocalizedPattern();
    logln("Localized pattern is " + locPat);
    pat.setCurrencyPluralInfo(infoInput);
    if (!infoInput.equals(pat.getCurrencyPluralInfo())) {
        errln("ERROR: set/get CurrencyPluralInfo() failed");
    }
    pat.setCurrencyPluralInfo(infoInput);
    if (!infoInput.equals(pat.getCurrencyPluralInfo())) {
        errln("ERROR: set/get CurrencyPluralInfo() failed");
    }
    // ======= Test applyPattern()
    logln("Testing applyPattern()");
    String p1 = new String("#,##0.0#;(#,##0.0#)");
    logln("Applying pattern " + p1);
    pat.applyPattern(p1);
    String s2;
    s2 = pat.toPattern();
    logln("Extracted pattern is " + s2);
    if (!s2.equals(p1)) {
        errln("ERROR: toPattern() result did not match pattern applied");
    }
    String p2 = new String("#,##0.0# FF;(#,##0.0# FF)");
    logln("Applying pattern " + p2);
    pat.applyLocalizedPattern(p2);
    String s3;
    s3 = pat.toLocalizedPattern();
    logln("Extracted pattern is " + s3);
    if (!s3.equals(p2)) {
        errln("ERROR: toLocalizedPattern() result did not match pattern applied");
    }
// ======= Test getStaticClassID()
// logln("Testing instanceof()");
// try {
// NumberFormat test = new DecimalFormat();
// if (! (test instanceof DecimalFormat)) {
// errln("ERROR: instanceof failed");
// }
// }
// catch (Exception e) {
// errln("ERROR: Couldn't create a DecimalFormat");
// }
}

Example 10 with DecimalFormat

use of android.icu.text.DecimalFormat in project j2objc by google.

the class IntlTestDecimalFormatSymbolsC method verify.

/**
 * helper functions*
 */
public void verify(double value, String pattern, DecimalFormatSymbols sym, String expected) {
    DecimalFormat df = new DecimalFormat(pattern, sym);
    StringBuffer buffer = new StringBuffer("");
    FieldPosition pos = new FieldPosition(-1);
    buffer = df.format(value, buffer, pos);
    if (!buffer.toString().equals(expected)) {
        errln("ERROR: format failed after setSymbols()\n Expected" + expected + ", Got " + buffer);
    }
}