Java - formarting number, dates, datetime, currency, locales and miscelaneous

We always get stuck when formarting number, dates, datetime, currency, locales and miscelaneous; so, a friend of mine, give us some snippets.

import java.text.DateFormat;
import java.text.DecimalFormat;
import java.text.NumberFormat;
import java.util.Date;
import java.util.Locale;

public class TestFormat {
    public static void main(String[] args) {

        // The "0" symbol shows a digit or 0 if no digit present 
        NumberFormat formatter = new DecimalFormat("000000"); 
        String s = formatter.format(-1234.567);  // -001235
        System.out.println(s);
        // notice that the number was rounded up 
         
        // The "#" symbol shows a digit or nothing if no digit present 
        formatter = new DecimalFormat("##"); 
        s = formatter.format(-1234.567);         // -1235
        System.out.println(s);
        s = formatter.format(0);                 // 0
        System.out.println(s);
        formatter = new DecimalFormat("##00"); 
        s = formatter.format(0);                 // 00
        System.out.println(s);
         
         
        // The "." symbol indicates the decimal point 
        formatter = new DecimalFormat(".00"); 
        s = formatter.format(-.567);             // -.57
        System.out.println(s);
        formatter = new DecimalFormat("0.00"); 
        s = formatter.format(-.567);             // -0.57
        System.out.println(s);
        formatter = new DecimalFormat("#.#"); 
        s = formatter.format(-1234.567);         // -1234.6
        System.out.println(s);
        formatter = new DecimalFormat("#.######"); 
        s = formatter.format(-1234.567);         // -1234.567
        System.out.println(s);
        formatter = new DecimalFormat(".######"); 
        s = formatter.format(-1234.567);         // -1234.567
        System.out.println(s);
        formatter = new DecimalFormat("#.000000"); 
        s = formatter.format(-1234.567);         // -1234.567000
        System.out.println(s);
         
         
        // The "," symbol is used to group numbers 
        formatter = new DecimalFormat("#,###,###"); 
        s = formatter.format(-1234.567);         // -1,235
        System.out.println(s);
        s = formatter.format(-1234567.890);      // -1,234,568
        System.out.println(s);
         
        // The ";" symbol is used to specify an alternate pattern for negative values 
        formatter = new DecimalFormat("#;(#)"); 
        s = formatter.format(-1234.567);         // (1235)
        System.out.println(s);
         
        // The ' symbol is used to quote literal symbols 
        formatter = new DecimalFormat("'#'#"); 
        s = formatter.format(-1234.567);         // -#1235
        System.out.println(s);
        formatter = new DecimalFormat("'abc'#"); 
        s = formatter.format(-1234.567);         // -abc1235
        System.out.println(s);

        System.out.println("-------using LOCALE-------");
        //with locale
        {
            Locale ptBR = new Locale("pt", "BR");
          
            DateFormat dateFormat =
              DateFormat.getDateInstance(DateFormat.FULL, ptBR);
            System.out.println(dateFormat.format(new Date()));
          
            DateFormat dateFormat2 =
                  DateFormat.getDateInstance(DateFormat.MEDIUM, ptBR);
                System.out.println(dateFormat2.format(new Date()));
  
            DateFormat dateFormat3 =
                  DateFormat.getDateInstance(DateFormat.SHORT, ptBR);
                System.out.println(dateFormat3.format(new Date()));          
  
            DateFormat timeFormat =
              DateFormat.getTimeInstance(DateFormat.SHORT, ptBR);
            System.out.println(timeFormat.format(new Date()));
          
            DateFormat timeFormat2 =
                  DateFormat.getTimeInstance(DateFormat.MEDIUM, ptBR);
                System.out.println(timeFormat2.format(new Date()));      
  
            DateFormat timeFormat3 =
                  DateFormat.getTimeInstance(DateFormat.FULL, ptBR);
                System.out.println(timeFormat3.format(new Date()));
          
            NumberFormat numberFormat =
              NumberFormat.getNumberInstance(ptBR); //for numbers
            System.out.println(numberFormat.format(13.23));
                 
            NumberFormat moedaFormat =
              NumberFormat.getCurrencyInstance(ptBR);  //for currencies
            System.out.println(moedaFormat.format(13.23));
        }

        {
            Locale ptBR = new Locale("es", "AR");
          
            DateFormat dateFormat =
              DateFormat.getDateInstance(DateFormat.FULL, ptBR);
            System.out.println(dateFormat.format(new Date()));
          
            DateFormat dateFormat2 =
                  DateFormat.getDateInstance(DateFormat.MEDIUM, ptBR);
                System.out.println(dateFormat2.format(new Date()));
  
            DateFormat dateFormat3 =
                  DateFormat.getDateInstance(DateFormat.SHORT, ptBR);
                System.out.println(dateFormat3.format(new Date()));          
  
            DateFormat timeFormat =
              DateFormat.getTimeInstance(DateFormat.SHORT, ptBR);
            System.out.println(timeFormat.format(new Date()));
          
            DateFormat timeFormat2 =
                  DateFormat.getTimeInstance(DateFormat.MEDIUM, ptBR);
                System.out.println(timeFormat2.format(new Date()));      
  
            DateFormat timeFormat3 =
                  DateFormat.getTimeInstance(DateFormat.FULL, ptBR);
                System.out.println(timeFormat3.format(new Date()));
          
            NumberFormat numberFormat =
              NumberFormat.getNumberInstance(ptBR); //for numbers
            System.out.println(numberFormat.format(13.23));
                 
            NumberFormat moedaFormat =
              NumberFormat.getCurrencyInstance(ptBR);  //for currencies
            System.out.println(moedaFormat.format(13.23));
        }
      
        {
            Locale ptBR = new Locale("en", "US");
          
            DateFormat dateFormat =
              DateFormat.getDateInstance(DateFormat.FULL, ptBR);
            System.out.println(dateFormat.format(new Date()));
          
            DateFormat dateFormat2 =
                  DateFormat.getDateInstance(DateFormat.MEDIUM, ptBR);
                System.out.println(dateFormat2.format(new Date()));
  
            DateFormat dateFormat3 =
                  DateFormat.getDateInstance(DateFormat.SHORT, ptBR);
                System.out.println(dateFormat3.format(new Date()));          
  
            DateFormat timeFormat =
              DateFormat.getTimeInstance(DateFormat.SHORT, ptBR);
            System.out.println(timeFormat.format(new Date()));
          
            DateFormat timeFormat2 =
                  DateFormat.getTimeInstance(DateFormat.MEDIUM, ptBR);
                System.out.println(timeFormat2.format(new Date()));      
  
            DateFormat timeFormat3 =
                  DateFormat.getTimeInstance(DateFormat.FULL, ptBR);
                System.out.println(timeFormat3.format(new Date()));
          
            NumberFormat numberFormat =
              NumberFormat.getNumberInstance(ptBR); //for numbers
            System.out.println(numberFormat.format(13.23));
                 
            NumberFormat moedaFormat =
              NumberFormat.getCurrencyInstance(ptBR);  //for currencies
            System.out.println(moedaFormat.format(13.23));
        }      
      
    }
}

enjoy it! (many thanks Marcelo Torres)

Looking for a package into JAR files

A nice script for using in Linux, when looking for some package into JAR files.

#!/bin/sh

# setting where java exists
JAVA_HOME=/opt/java

# what are you looking for? put here the package
LOOK_FOR="org/springframework/context/annotation"

# looping looking for
for i in `find . -name "*jar"`
do
echo "Looking in $i ..."
$JAVA_HOME/bin/jar tvf $i | grep $LOOK_FOR > /dev/null
if [ $? = 0 ] then
echo "==> Found \"$LOOK_FOR\" in $i"
fi
done