Examples of java.text.DecimalFormatSymbols

java.text.DecimalFormatSymbols
This class represents the set of symbols (such as the decimal separator, the grouping separator, and so on) needed by DecimalFormat to format numbers. DecimalFormat creates for itself an instance of DecimalFormatSymbols from its locale data. If you need to change any of these symbols, you can get the DecimalFormatSymbols object from your DecimalFormat and modify it. @see java.util.Locale @see DecimalFormat @version 1.46, 02/27/06 @author Mark Davis @author Alan Liu

        }


        // pattern
        if (_pattern != null)
        {
            return new DecimalFormat(_pattern, new DecimalFormatSymbols(lokale));
        }


        // type
        if (_type.equals("number"))
        {

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        }
        else if (format instanceof DecimalFormat)


        {
            DecimalFormat dFormat = (DecimalFormat)format;
            DecimalFormatSymbols symbols = dFormat.getDecimalFormatSymbols();
            symbols.setCurrencySymbol(_currencySymbol);
            dFormat.setDecimalFormatSymbols(symbols);
        }
    }

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    }




    private DecimalFormatSymbols getDecimalFormatSymbols()
    {
        return new DecimalFormatSymbols(getLocale());
    }

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        // Even if parseIntegerOnly is set to true, NaN will be parsed to Double


        form = (DecimalFormat) DecimalFormat.getInstance(Locale.US);
        form.setParseIntegerOnly(true);
        DecimalFormatSymbols symbols = new DecimalFormatSymbols();
        number = form.parse(symbols.getNaN(), new ParsePosition(0));
        assertTrue(number instanceof Double);


        // Even if parseIntegerOnly is set to true, Infinity will still be
        // parsed to Double


        form = (DecimalFormat) DecimalFormat.getInstance(Locale.US);
        form.setParseIntegerOnly(true);
        symbols = new DecimalFormatSymbols();
        number = form.parse(symbols.getInfinity(), new ParsePosition(0));
        assertTrue(number instanceof Double);


        // ParseBigDecimal take precedence of parseBigInteger


        form = (DecimalFormat) DecimalFormat.getInstance(Locale.US);
        form.setParseIntegerOnly(true);
        form.setParseBigDecimal(true);


        number = form.parse("23.1f", new ParsePosition(0));


        assertTrue(number instanceof BigDecimal);


        number = form.parse("23.0", new ParsePosition(0));
        assertTrue(number instanceof BigDecimal);


        number = form.parse("-9,223,372,036,854,775,8080.00",
                new ParsePosition(0));
        assertFalse(number instanceof BigInteger);
        assertTrue(number instanceof BigDecimal);


        // Test whether the parsed object is of type float. (To be specific,
        // they are of type Double)


        form = (DecimalFormat) DecimalFormat.getInstance(Locale.US);


        number = form.parse("23.1f", new ParsePosition(0));
        assertTrue(number instanceof Double);


        form.setParseBigDecimal(true);
        number = form.parse("23.1f", new ParsePosition(0));
        assertTrue(number instanceof BigDecimal);
        assertEquals(new BigDecimal("23.1"), number);


        // Integer will be parsed to Long, unless parseBigDecimal is set to true


        form = (DecimalFormat) DecimalFormat.getInstance(Locale.US);


        number = form.parse("123", new ParsePosition(0));
        assertTrue(number instanceof Long);


        form.setParseBigDecimal(true);
        number = form.parse("123", new ParsePosition(0));
        assertTrue(number instanceof BigDecimal);
        assertEquals(new BigDecimal("123"), number);


        // NaN will be parsed to Double, no matter parseBigDecimal set or not.


        form = (DecimalFormat) DecimalFormat.getInstance(Locale.US);
        symbols = new DecimalFormatSymbols();
        number = form.parse(symbols.getNaN() + "", new ParsePosition(0));
        assertTrue(number instanceof Double);


        form.setParseBigDecimal(true);
        number = form.parse(symbols.getNaN() + "", new ParsePosition(0));
        assertTrue(number instanceof Double);


        // Infinity will be parsed to Double, no matter parseBigDecimal set or
        // not.


        form = (DecimalFormat) DecimalFormat.getInstance(Locale.US);
        symbols = new DecimalFormatSymbols();


        number = form.parse(symbols.getInfinity(), new ParsePosition(0));


        assertTrue(number instanceof Double);
        assertEquals("Infinity", number.toString());
        // When set bigDecimal to true, the result of parsing infinity


        form = (DecimalFormat) DecimalFormat.getInstance(Locale.US);
        symbols = new DecimalFormatSymbols();
        form.setParseBigDecimal(true);


        number = form.parse(symbols.getInfinity(), new ParsePosition(0));
        assertTrue(number instanceof Double);
        assertEquals("Infinity", number.toString());


        // Negative infinity will be parsed to double no matter parseBigDecimal
        // set or not


        form = (DecimalFormat) DecimalFormat.getInstance(Locale.US);
        symbols = new DecimalFormatSymbols();


        number = form.parse("-" + symbols.getInfinity(), new ParsePosition(0));


        assertTrue(number instanceof Double);
        assertEquals("-Infinity", number.toString());


        // When set bigDecimal to true, the result of parsing minus infinity


        form = (DecimalFormat) DecimalFormat.getInstance(Locale.US);
        symbols = new DecimalFormatSymbols();
        form.setParseBigDecimal(true);


        number = form.parse("-" + symbols.getInfinity(), new ParsePosition(0));


        assertTrue(number instanceof Double);
        assertEquals("-Infinity", number.toString());


        // -0.0 will be parsed to different type according to the combination of

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    }


    public void test_equalsLjava_lang_Object() {
        DecimalFormat format = (DecimalFormat) DecimalFormat.getInstance(Locale.US);
        DecimalFormat cloned = (DecimalFormat) format.clone();
        cloned.setDecimalFormatSymbols(new DecimalFormatSymbols(Locale.US));
        assertEquals(format, cloned);


        Currency c = Currency.getInstance(Locale.US);
        cloned.setCurrency(c);

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                .t_format_with_FieldPosition();


        int failCount = 0;
        BitSet failures = new BitSet();


        final DecimalFormatSymbols dfs = new DecimalFormatSymbols(Locale.US);


        DecimalFormat df = new DecimalFormat("00.0#E0", dfs);
        compare("00.0#E0: 0.0", df.format(0.0), "00.0E0");
        compare("00.0#E0: 1.0", df.format(1.0), "10.0E-1");
        compare("00.0#E0: 12.0", df.format(12.0), "12.0E0");

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    //FIXME This test fails on Harmony ClassLibrary
    public void test_formatJLjava_lang_StringBufferLjava_text_FieldPosition() {
        int failCount = 0;
        BitSet failures = new BitSet();


        final DecimalFormatSymbols dfs = new DecimalFormatSymbols(Locale.US);


        DecimalFormat df = new DecimalFormat("00.0#E0", dfs);
        assertEquals("00.0#E0: 0", "00.0E0", df.format(0));
        assertEquals("00.0#E0: 1", "10.0E-1", df.format(1));
        assertEquals("00.0#E0: 12", "12.0E0", df.format(12));

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     * @tests java.text.DecimalFormat#getDecimalFormatSymbols()
     */
    public void test_getDecimalFormatSymbols() {
        DecimalFormat df = (DecimalFormat) NumberFormat
                .getInstance(Locale.ENGLISH);
        DecimalFormatSymbols dfs = df.getDecimalFormatSymbols();
        assertTrue("Identical symbols", dfs != df.getDecimalFormatSymbols());
    }

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    /**
     * @tests java.text.DecimalFormat#setDecimalFormatSymbols(java.text.DecimalFormatSymbols)
     */
    public void test_setDecimalFormatSymbolsLjava_text_DecimalFormatSymbols() {
        DecimalFormat df = new DecimalFormat("###0.##");
        DecimalFormatSymbols dfs = new DecimalFormatSymbols();
        dfs.setDecimalSeparator('@');
        df.setDecimalFormatSymbols(dfs);
        assertTrue("Not set", df.getDecimalFormatSymbols().equals(dfs));
        assertEquals("Symbols not used", "1@2", df.format(1.2));


        // The returned symbols may be cloned in two spots
        // 1. When set
        // 2. When returned
        DecimalFormat format = new DecimalFormat();
        DecimalFormatSymbols symbols = new DecimalFormatSymbols();
        format.setDecimalFormatSymbols(symbols);
        DecimalFormatSymbols symbolsOut = format.getDecimalFormatSymbols();
        assertNotSame(symbols, symbolsOut);
    }

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    /**
     * @tests java.text.DecimalFormat#setDecimalSeparatorAlwaysShown(boolean)
     */
    public void test_setDecimalSeparatorAlwaysShownZ() {
        DecimalFormat df = new DecimalFormat("###0.##",
                                             new DecimalFormatSymbols(Locale.US));
        assertEquals("Wrong default result", "5", df.format(5));
        df.setDecimalSeparatorAlwaysShown(true);
        assertTrue("Not set", df.isDecimalSeparatorAlwaysShown());
        assertEquals("Wrong set result", "7.", df.format(7));
    }

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