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

Example 26 with DecimalFormat

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

the class NumberFormatTest method TestStrictParse.

@Test
public void TestStrictParse() {
    String[] pass = { // single zero before end of text is not leading
    "0", // single zero at end of number is not leading
    "0 ", // single zero before period (or decimal, it's ambiguous) is not leading
    "0.", // single zero before comma (not group separator) is not leading
    "0,", // single zero before decimal followed by digit is not leading
    "0.0", // same as above before period (or decimal) is not leading
    "0. ", // comma stops parse of decimal (no grouping)
    "0.100,5", // leading decimal is ok, even with zeros
    ".00", // group separators are not required
    "1234567", // comma not followed by digit is not a group separator, but end of number
    "12345, ", // if group separator is present, group sizes must be appropriate
    "1,234, ", // ...secondary too
    "1,234,567", // an exponent not followed by zero or digits is not an exponent
    "0E", // leading zero before zero - used to be error - see ticket #7913
    "00", // leading zero before digit - used to be error - see ticket #7913
    "012", // leading zero before group separator - used to be error - see ticket #7913
    "0,456" };
    String[] fail = { // wrong number of digits after group separator
    "1,2", // leading group separator before zero
    ",0", // leading group separator before digit
    ",1", // leading group separator before decimal
    ",.02", // group separator before decimal
    "1,.02", // multiple group separators
    "1,,200", // wrong number of digits in primary group
    "1,45", // wrong number of digits in primary group
    "1,45 that", // wrong number of digits in primary group
    "1,45.34", // wrong number of digits in secondary group
    "1234,567", // wrong number of digits in secondary group
    "12,34,567", // wrong number of digits in primary and secondary groups
    "1,23,456,7890" };
    DecimalFormat nf = (DecimalFormat) NumberFormat.getInstance(Locale.ENGLISH);
    runStrictParseBatch(nf, pass, fail);
    String[] scientificPass = { // single zero before exponent is ok
    "0E2", // any number of digits before exponent is ok
    "1234E2", // an exponent string not followed by zero or digits is not an exponent
    "1,234E", // leading zeroes now allowed in strict mode - see ticket #
    "00E2" };
    String[] scientificFail = { // group separators with exponent fail
    "1,234E2" };
    nf = (DecimalFormat) NumberFormat.getInstance(Locale.ENGLISH);
    runStrictParseBatch(nf, scientificPass, scientificFail);
    String[] mixedPass = { "12,34,567", "12,34,567,", "12,34,567, that", "12,34,567 that" };
    String[] mixedFail = { "12,34,56", "12,34,56,", "12,34,56, that ", "12,34,56 that" };
    nf = new DecimalFormat("#,##,##0.#");
    runStrictParseBatch(nf, mixedPass, mixedFail);
}

Example 27 with DecimalFormat

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

the class NumberFormatTest method TestBigDecimalRounding.

@Test
public void TestBigDecimalRounding() {
    String figure = "50.000000004";
    Double dbl = new Double(figure);
    BigDecimal dec = new BigDecimal(figure);
    DecimalFormat f = (DecimalFormat) NumberFormat.getInstance();
    f.applyPattern("00.00######");
    assertEquals("double format", "50.00", f.format(dbl));
    assertEquals("bigdec format", "50.00", f.format(dec));
    int maxFracDigits = f.getMaximumFractionDigits();
    BigDecimal roundingIncrement = new BigDecimal("1").movePointLeft(maxFracDigits);
    f.setRoundingIncrement(roundingIncrement);
    f.setRoundingMode(BigDecimal.ROUND_DOWN);
    assertEquals("Rounding down", f.format(dbl), f.format(dec));
    f.setRoundingIncrement(roundingIncrement);
    f.setRoundingMode(BigDecimal.ROUND_HALF_UP);
    assertEquals("Rounding half up", f.format(dbl), f.format(dec));
}

Example 28 with DecimalFormat

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

the class NumberFormatTest method TestCurrFmtNegSameAsPositive.

@Test
public void TestCurrFmtNegSameAsPositive() {
    DecimalFormatSymbols decfmtsym = DecimalFormatSymbols.getInstance(Locale.US);
    // ZERO WIDTH SPACE, in ICU4J cannot set to empty string
    decfmtsym.setMinusSign('\u200B');
    DecimalFormat decfmt = new DecimalFormat("\u00A4#,##0.00;\u00A4#,##0.00", decfmtsym);
    String currFmtResult = decfmt.format(-100.0);
    if (!currFmtResult.equals("\u200B$100.00")) {
        errln("decfmt.toPattern results wrong, expected \u200B$100.00, got " + currFmtResult);
    }
}

Example 29 with DecimalFormat

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

the class NumberFormatTest method TestDecimalFormatCurrencyParse.

@Test
public void TestDecimalFormatCurrencyParse() {
    // Locale.US
    DecimalFormatSymbols sym = new DecimalFormatSymbols(Locale.US);
    StringBuffer pat = new StringBuffer("");
    char currency = 0x00A4;
    // "\xA4#,##0.00;-\xA4#,##0.00"
    pat.append(currency).append(currency).append(currency).append("#,##0.00;-").append(currency).append(currency).append(currency).append("#,##0.00");
    DecimalFormat fmt = new DecimalFormat(pat.toString(), sym);
    String[][] DATA = { // string to be parsed, the parsed result (number)
    { "$1.00", "1" }, { "USD1.00", "1" }, { "1.00 US dollar", "1" }, { "$1,234.56", "1234.56" }, { "USD1,234.56", "1234.56" }, { "1,234.56 US dollar", "1234.56" } };
    try {
        for (int i = 0; i < DATA.length; ++i) {
            String stringToBeParsed = DATA[i][0];
            double parsedResult = Double.parseDouble(DATA[i][1]);
            Number num = fmt.parse(stringToBeParsed);
            if (num.doubleValue() != parsedResult) {
                errln("FAIL parse: Expected " + parsedResult);
            }
        }
    } catch (ParseException e) {
        errln("FAILED, DecimalFormat parse currency: " + e.toString());
    }
}

Example 30 with DecimalFormat

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

the class NumberFormatTest method TestParseCurrPatternWithDecStyle.

@Test
public void TestParseCurrPatternWithDecStyle() {
    String currpat = "¤#,##0.00";
    String parsetxt = "x0y$";
    DecimalFormat decfmt = (DecimalFormat) NumberFormat.getInstance(new ULocale("en_US"), NumberFormat.NUMBERSTYLE);
    decfmt.applyPattern(currpat);
    ParsePosition ppos = new ParsePosition(0);
    Number value = decfmt.parse(parsetxt, ppos);
    if (ppos.getIndex() != 0) {
        errln("DecimalFormat.parse expected to fail but got ppos " + ppos.getIndex() + ", value " + value);
    }
}