Java 8 DecimalFormatSymbols - top ranked examples from Open Source projects

These code examples were ranked by Codota’s semantic indexing as the best open source examples for Java 8 DecimalFormatSymbols class.

Code example from Github project wocommunity/wonder, ERXDecimalFormatSymbols.java »

This code example shows how to use the following methods:setDecimalSeparator, setGroupingSeparator

  } 
  private static DecimalFormatSymbols decimalCommaSymbol = null;
 
  public static DecimalFormatSymbols decimalDotSymbol() {
    if(decimalDotSymbol == null) {
      decimalDotSymbol = new DecimalFormatSymbols();
      decimalDotSymbol.setDecimalSeparator(MONEY_SEPERATOR_DOT);      
      decimalDotSymbol.setGroupingSeparator(MONEY_SEPERATOR_COMMA);     
    } 
    return decimalDotSymbol;
  } 
  private static DecimalFormatSymbols decimalDotSymbol = null;
 
  public static DecimalFormatSymbols decimalFormatSymbols(char c) {   
    return (ERXDecimalFormatSymbols.MONEY_SEPERATOR_COMMA == c) ? ERXDecimalFormatSymbols.decimalCommaSymbol() : ERXDecimalFormatSymbols.decimalDotSymbol();
  } 
 
  public static DecimalFormatSymbols decimalFormatSymbols(String s) {   
    return ERXStringUtilities.stringIsNullOrEmpty(s) ? ERXDecimalFormatSymbols.decimalDotSymbol() : ERXDecimalFormatSymbols.decimalFormatSymbols(s.charAt(0));
  }

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Code example from Github project liato/android-bankdroid, Helpers.java »

This code example shows how to use the following methods:setDecimalSeparator, setGroupingSeparator

            ret = new BigDecimal(0);
        } 
        return ret;
    } 
    public static String formatBalance(BigDecimal balance, String curr, boolean round) {
        DecimalFormatSymbols dfs = new DecimalFormatSymbols();
        dfs.setDecimalSeparator(',');
        dfs.setGroupingSeparator(' ');
        DecimalFormat currency;
        if (!round) {
            currency = new DecimalFormat("#,##0.00 ");
        } 
        else { 
            currency = new DecimalFormat("#,##0 ");  
        } 
        currency.setDecimalFormatSymbols(dfs);
        return currency.format(balance.doubleValue())+curr;
    } 
    public static String formatBalance(BigDecimal balance, String curr) {
        return formatBalance(balance, curr, false);

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Code example from Github project serso/android-calculatorpp, FromJsclSimplifyTextProcessorTest.java »

This code example shows how to use the following methods:setGroupingSeparator

	public void testProcess() throws Exception { 
		FromJsclSimplifyTextProcessor tp = new FromJsclSimplifyTextProcessor();
		//Assert.assertEquals("(e)", tp.process("(2.718281828459045)")); 
		//Assert.assertEquals("ee", tp.process("2.718281828459045*2.718281828459045")); 
		//Assert.assertEquals("((e)(e))", tp.process("((2.718281828459045)*(2.718281828459045))")); 
		DecimalFormatSymbols decimalGroupSymbols = new DecimalFormatSymbols();
		decimalGroupSymbols.setGroupingSeparator(' ');
		Locator.getInstance().getEngine().setDecimalGroupSymbols(decimalGroupSymbols);
		//Assert.assertEquals("123 456 789e", tp.process("123456789*2.718281828459045")); 
		//Assert.assertEquals("123 456 789e", tp.process("123 456 789 * 2.718281828459045")); 
		//Assert.assertEquals("t11e", tp.process("t11*2.718281828459045")); 
		//Assert.assertEquals("e", tp.process("2.718281828459045")); 
		//Assert.assertEquals("tee", tp.process("t2.718281828459045*2.718281828459045")); 
 
		Locator.getInstance().getEngine().getVarsRegistry().add(new Var.Builder("t2.718281828459045", "2")); 
		Locator.getInstance().getEngine().getVarsRegistry().add(new Var.Builder("t", (String) null));
		//Assert.assertEquals("t2.718281828459045e", tp.process("t2.718281828459045*2.718281828459045")); 
		//Assert.assertEquals("ee", tp.process("2.718281828459045*2.718281828459045")); 
		Assert.assertEquals("t×", tp.process("t*"));
		Assert.assertEquals("×t", tp.process("*t"));

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Code example from Github project serso/android-calculatorpp, AndroidCalculatorEngineTest.java »

This code example shows how to use the following methods:setDecimalSeparator, setGroupingSeparator

	@Test 
	public void testRounding() throws Exception { 
		final MathEngine cm = Locator.getInstance().getEngine().getMathEngine0();
 
		try { 
			DecimalFormatSymbols decimalGroupSymbols = new DecimalFormatSymbols(Locale.getDefault());
			decimalGroupSymbols.setDecimalSeparator('.');
			decimalGroupSymbols.setGroupingSeparator('\'');
			cm.setDecimalGroupSymbols(decimalGroupSymbols);
			cm.setPrecision(2);
			CalculatorTestUtils.assertEval("12'345'678.9", cm.evaluate("1.23456789E7"));
			cm.setPrecision(10);
			CalculatorTestUtils.assertEval("12'345'678.9", cm.evaluate("1.23456789E7"));
			CalculatorTestUtils.assertEval("123'456'789", cm.evaluate("1.234567890E8"));
			CalculatorTestUtils.assertEval("1'234'567'890.1", cm.evaluate("1.2345678901E9"));
		} finally { 
			cm.setPrecision(3);
			DecimalFormatSymbols decimalGroupSymbols = new DecimalFormatSymbols(Locale.getDefault());
			decimalGroupSymbols.setDecimalSeparator('.');
			decimalGroupSymbols.setGroupingSeparator(JsclMathEngine.GROUPING_SEPARATOR_DEFAULT.charAt(0));

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Code example from Github project elasticsearch/elasticsearch, ValueFormatter.java »

This code example shows how to use the following methods:

            return format.format(value);
        } 
 
        public static class Pattern extends Number { 
 
            private static final DecimalFormatSymbols SYMBOLS = new DecimalFormatSymbols(Locale.ROOT);
 
            static final byte ID = 4;
 
            String pattern;
 
            Pattern() {} // for serialization 
 
            public Pattern(String pattern) {
                super(new DecimalFormat(pattern, SYMBOLS));
                this.pattern = pattern;
            } 
 
            @Override 
            public byte id() {

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Code example from Github project void256/nifty-gui, FilterAcceptFloat.java »

This code example shows how to use the following methods:getDecimalSeparator, getMinusSign

 
  /** 
   * The default constructor needed to fetch the locale dependant values. 
   */ 
  public FilterAcceptFloat() { 
    final DecimalFormatSymbols symbols = new DecimalFormatSymbols(Locale.getDefault());
    minusChar = symbols.getMinusSign();
    decimalSeparator = symbols.getDecimalSeparator();
  } 
 
  @Override 
  public boolean acceptInput(final int index, final char newChar) {
    if (Character.isDigit(newChar)) {
      return true; 
    } 
 
    if ((newChar == minusChar) && (index == 0)) {
      return true; 
    }

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Code example from Github project gradle/gradle, LocaleSafeDecimalFormat.java »

This code example shows how to use the following methods:setDecimalSeparator

     * @param source 
     * @return 
     * @throws ParseException 
     */ 
    public BigDecimal parse(String source) throws ParseException {
        DecimalFormatSymbols symbols = new DecimalFormatSymbols();
        symbols.setDecimalSeparator('.');
        DecimalFormat format = new DecimalFormat("#.#", symbols);
        format.setParseBigDecimal(true);
        return (BigDecimal) format.parse(source);
    } 
}

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Code example from Github project apache/tapestry5, NumericTranslatorSupportImpl.java »

This code example shows how to use the following methods:getDecimalSeparator, getGroupingSeparator, getMinusSign

 
        DecimalFormatSymbols symbols = getSymbols(locale);
 
        JSONObject result = new JSONObject();
 
        result.put("groupingSeparator", toString(symbols.getGroupingSeparator()));
        result.put("minusSign", toString(symbols.getMinusSign()));
        result.put("decimalSeparator", toString(symbols.getDecimalSeparator()));
 
        return result;
    } 
 
    private DecimalFormatSymbols getSymbols(Locale locale)
    { 
        DecimalFormatSymbols symbols = symbolsCache.get(locale);
 
        if (symbols == null)
        { 
            symbols = new DecimalFormatSymbols(locale);
            symbolsCache.put(locale, symbols);

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Code example from Github project wocommunity/wonder, ERXDecimalFormatSymbols.java »

This code example shows how to use the following methods:setDecimalSeparator, setGroupingSeparator

  } 
  private static DecimalFormatSymbols decimalCommaSymbol = null;
 
  public static DecimalFormatSymbols decimalDotSymbol() {
    if(decimalDotSymbol == null) {
      decimalDotSymbol = new DecimalFormatSymbols();
      decimalDotSymbol.setDecimalSeparator(MONEY_SEPERATOR_DOT);      
      decimalDotSymbol.setGroupingSeparator(MONEY_SEPERATOR_COMMA);     
    } 
    return decimalDotSymbol;
  } 
  private static DecimalFormatSymbols decimalDotSymbol = null;
 
  public static DecimalFormatSymbols decimalFormatSymbols(char c) {   
    return (ERXDecimalFormatSymbols.MONEY_SEPERATOR_COMMA == c) ? ERXDecimalFormatSymbols.decimalCommaSymbol() : ERXDecimalFormatSymbols.decimalDotSymbol();
  } 
 
  public static DecimalFormatSymbols decimalFormatSymbols(String s) {   
    return ERXStringUtilities.stringIsNullOrEmpty(s) ? ERXDecimalFormatSymbols.decimalDotSymbol() : ERXDecimalFormatSymbols.decimalFormatSymbols(s.charAt(0));
  }

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Code example from Github project geotools/geotools, FilterFunction_numberFormat2.java »

This code example shows how to use the following methods:setDecimalSeparator, setGroupingSeparator, setMinusSign

         
        if(format == null || number == null) {
            return null; 
        } 
 
        DecimalFormatSymbols symbols = new DecimalFormatSymbols();
         
        if (params.size() > 2) { 
            Character neg = getExpression(2).evaluate(feature, Character.class);
            symbols.setMinusSign(neg);
        } 
         
        if (params.size() > 3) { 
            Character dec = getExpression(3).evaluate(feature, Character.class);
            symbols.setDecimalSeparator(dec);
        } 
         
        if (params.size() > 4) { 
            Character grp = getExpression(4).evaluate(feature, Character.class);
            symbols.setGroupingSeparator(grp);

         
        if(format == null || number == null) {
            return null; 
        } 
 
        DecimalFormatSymbols symbols = new DecimalFormatSymbols();
         
        if (params.size() > 2) { 
            Character neg = getExpression(2).evaluate(feature, Character.class);
            symbols.setMinusSign(neg);
        } 
         
        if (params.size() > 3) { 
            Character dec = getExpression(3).evaluate(feature, Character.class);
            symbols.setDecimalSeparator(dec);
        } 
         
        if (params.size() > 4) { 
            Character grp = getExpression(4).evaluate(feature, Character.class);
            symbols.setGroupingSeparator(grp);
        } 
         
        DecimalFormat numberFormat = new DecimalFormat(format, symbols);
        return numberFormat.format(number);
    }

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Related Java 8 DecimalFormatSymbols Questions & Answers:

How can I format a number to the fixed locale?

1:	 public static String addCommas(int num) {
2:	    DecimalFormat df = new DecimalFormat();
3:	    DecimalFormatSymbols dfs = new DecimalFormatSymbols();
4:	    dfs.setGroupingSeparator(',');
5:	    df.setDecimalFormatSymbols(dfs);
-
1:	 public static String addCommas(int num) {
2:	    DecimalFormat df = new DecimalFormat();
3:	    DecimalFormatSymbols dfs = new DecimalFormatSymbols();
4:	    dfs.setGroupingSeparator(',');
5:	    df.setDecimalFormatSymbols(dfs);

Caner's full answer:

Yes, there is a "trick" in Java:

public static String addCommas(int num) {
    DecimalFormat df = new DecimalFormat();
    DecimalFormatSymbols dfs = new DecimalFormatSymbols();
    dfs.setGroupingSeparator(',');
    df.setDecimalFormatSymbols(dfs);
    return df.format(num);
}

System.out.println(addCommas(123456789));

EDIT: In case you want your output to be independent from locale you can use the method below. It starts from the end so there is no need to reverse the string and should be quite efficient:

public static String addCommas(int num) {
    StringBuilder s = new StringBuilder(Integer.toString(num));
    for(int i = s.length() - 3; i > 0; i -= 3) {
        s.insert(i, ',');
    }
    return s.toString();
}

1:	 NumberFormat nf = NumberFormat.getInstance();
2:	if(nf instanceof DecimalFormat) {
3:	    DecimalFormatSymbols sym = nf.getDecimalFormatSymbols();
4:	    char decSeparator = sym.getDecimalSeparator();
5:	}

kcoppock's full answer:

I believe I have a way. I've never USED this, mind you, but it should certainly get you close, if not there:

NumberFormat nf = NumberFormat.getInstance();
if (nf instanceof DecimalFormat) {
    DecimalFormatSymbols sym = ((DecimalFormat) nf).getDecimalFormatSymbols();
    char decSeparator = sym.getDecimalSeparator();
}

Docs:

NumberFormat, DecimalFormat, DecimalFormatSymbols

According to the DecimalFormat docs, apparently calling NumberFormat.getInstance() is safe, but may return a subclass other than DecimalFormat (the other option I see is ChoiceFormat). I believe for the majority of instances it should be a DecimalFormat, and then you can compare decSeparator against a , and . to see which format it is using.

1:	 DecimalFormatSymbols symbols = new DecimalFormatSymbols();
2:	symbols.setGroupingSeparator('\'');
3:	symbols.setDecimalSeparator(',');
-
1:	 DecimalFormatSymbols symbols = new DecimalFormatSymbols();
2:	symbols.setGroupingSeparator('\'');
3:	symbols.setDecimalSeparator(',');

njzk2's full answer:

The format you need is € #,###.00, , means you use a grouping separator.

Then, you need a DecimalFormatSymbols to specify the grouping symbol and the decimal symbol:

DecimalFormatSymbols symbols = new DecimalFormatSymbols();
symbols.setGroupingSeparator('\'');
symbols.setDecimalSeparator(',');

DecimalFormat decimalFormat = new DecimalFormat("€ #,###.00", symbols);
String prezzo = decimalFormat.format(number);

Result € 1'515,28

1:	 DecimalFormatSymbols symbols = DecimalFormatSymbols.getInstance(Locale.US);
2:	DecimalFormat format = new DecimalFormat("#.00", symbols);

Jon Skeet's full answer:

Is it really possible that DecimalFormat is producing a comma version of the decimal on European phones?

Yes, absolutely. That's what it's meant to do, after all:

Creates a DecimalFormat using the given pattern and the symbols for the default locale. This is a convenient way to obtain a DecimalFormat when internationalization is not the main concern.

To obtain standard formats for a given locale, use the factory methods on NumberFormat such as getNumberInstance. These factories will return the most appropriate sub-class of NumberFormat for a given locale.

Note that this isn't a matter of a "European version of Android" - it's just a matter of using Android in a context where the default locale uses , as the decimal separator.

If you want to use the symbols for a particular locale, but using a specific pattern, you could use:

DecimalFormatSymbols symbols = DecimalFormatSymbols.getInstance(Locale.US);
DecimalFormat format = new DecimalFormat("#.00", symbols);

Having said that, it's not at all clear what you're trying to do in the first place - why would you format and then parse a number? You should almost always avoid string conversions when you don't really need them. Why not just convert it directly? (We don't know what totalNumberOfCredits is, which doesn't help.)

1:	 Double BMI = ((fWeight)/(dHeight*dHeight));
2:	DecimalFormat df = new DecimalFormat("0.00");
3:	DecimalFormatSymbols dfs = new DecimalFormatSymbols();
4:	dfs.setDecimalSeparator('.');
5:	df.setDecimalFormatSymbols(dfs);
-
1:	 Double BMI = ((fWeight)/(dHeight*dHeight));
2:	DecimalFormat df = new DecimalFormat("0.00");
3:	DecimalFormatSymbols dfs = new DecimalFormatSymbols();
4:	dfs.setDecimalSeparator('.');
5:	df.setDecimalFormatSymbols(dfs);

Diego Torres Milano's full answer:

Try this:

Double BMI = ((fWeight)/(dHeight*dHeight));
DecimalFormat df = new DecimalFormat("0.00");
DecimalFormatSymbols dfs = new DecimalFormatSymbols();
dfs.setDecimalSeparator('.');
df.setDecimalFormatSymbols(dfs);
String sBMI = df.format(BMI);