Java Number Format Pattern formatI18N(Object ob)

Description

format IN

License

Open Source License

Declaration

public static String formatI18N(Object ob) 

Method Source Code

//package com.java2s;
import java.math.BigDecimal;
import java.text.DecimalFormat;

public class Main {

    public static String formatI18N(Object ob, String formatType) {
        if (ob == null) {
            return "";
        }//from  www  . j  av a 2 s . c  o m

        Double value = toDouble(ob, null);
        if (value == null) {
            return "";
        }

        //value = round(value,4);

        DecimalFormat sos = new DecimalFormat(formatType);
        String s = sos.format(value);
        //s = filterZero(s);

        //        String[] ss = s.split("\\.");
        //        if( ss.length==1 ){
        //            return s+".00";
        //        }
        //        
        //        if( ss[1].length()==1 ){
        //            return s+"0";
        //        }

        return s;
    }

    public static String formatI18N(Object ob) {
        if (ob == null) {
            return "";
        }

        Double value = toDouble(ob, null);
        if (value == null) {
            return "";
        }

        value = round(value, 4);

        DecimalFormat sos = new DecimalFormat("##,##0.0000");
        String s = sos.format(value);
        s = filterZero(s);

        String[] ss = s.split("\\.");
        if (ss.length == 1) {
            return s + ".00";
        }

        if (ss[1].length() == 1) {
            return s + "0";
        }

        return s;
    }

    public static Double toDouble(Object ob, Double defaultDouble) {

        if (ob == null) {
            return defaultDouble;
        }

        if (ob instanceof Integer) {
            return ((Integer) ob).doubleValue();
        } else if (ob instanceof Float) {
            return ((Float) ob).doubleValue();
        } else if (ob instanceof Double) {
            return ((Double) ob).doubleValue();
        } else if (ob instanceof Byte) {
            return ((Byte) ob).doubleValue();
        } else {
            try {
                return new Double(ob.toString());
            } catch (Exception e) {
                return defaultDouble;
            }
        }
    }

    public static Double toDouble(Object ob) {
        return toDouble(ob, 0d);
    }

    public static double round(double v, int scale) {
        if (scale < 0)
            throw new IllegalArgumentException("The scale must be a positive integer or zero");
        BigDecimal b = new BigDecimal(Double.toString(v));
        BigDecimal one = new BigDecimal("1");
        return b.divide(one, scale, 4).doubleValue();
    }

    public static String filterZero(String str) {
        if (str == null || str.trim().length() == 0 || str.indexOf(".") == -1) {
            return str;
        }

        String[] s = str.split("\\.");
        if (s[1].length() <= 2) {
            return str;
        }
        while (s[1].endsWith("0")) {
            s[1] = s[1].substring(0, s[1].length() - 1);
        }

        if (s[1].length() == 0) {
            return s[0] + ".00";
        } else if (s[1].length() == 1) {
            return s[0] + "." + s[1] + "0";
        } else {
            return s[0] + "." + s[1];
        }
    }
}

Related

1. formatDisplay(String displayString)
2. formatDollar(Object obj)
3. formatDollarTd(Object obj)
4. formatFileLength(long length)
5. formatGopNumber(Number gop)
6. formatiereSpeichergroesse(long bytes)
7. formatIncludeCommas(final Number object)
8. formatInt(final int number)
9. formatInteger(Object obj)