//Trim () Returns a copy of the string, with leading and trailing whitespace omitted. 
// Create a new Object from myOutputMessage2 as String
outputTrim = new String ( myOutputMessage2 );
String finalOutput = "";
finalOutput = outputTrim.trim ();
System.out.println ( "The finalOutput after Trim is: " + finalOutput );

In addition, I'm utilising a HasMap for storing, and retrieving the information. I have to display in a TextArea the result like that:
    Number          Frequency
              Occurences   Percentage
       a:         23           11%

All the above works, except the Percentage part. I can get the real amount, instead I've got 0% allways.

Please could you explain it to me, many thanks 

Many thanks for your advices, replaceAll() does work properly, 
thus could you give a look to this code for me.
- I would like to output in a JTextArea this format:

Number        Frequency
        Occurences  Percentage
a:          23          18%    

this is an Example of string in output utilising the java program bellow.

    /**
     *  performPatternAnalyse Method
     * 
     */
	public void performPatternAnalyse ( int passedToggle )
	{
		HashMap myFrequency = new HashMap ();
		Integer ctrCount = 0;
		Integer myFinalCTR_1 = 0;
		Integer myFinalCTR_2 = 0;
		Integer myPercent_1 = 0;
		Integer myPercent_2 = 0;
		String analyse1 = "";
		String analyse2 = "";
		String analyse3 = "";
		
		if ( passedToggle == 1 )
		{
			char [] myChars = displaySwapTA_4_2.toCharArray ();
			for ( int ctr = myChars.length-1; ctr >= 0; ctr-- )
			{
				Character theCharacter = new Character ( displaySwapTA_4_2.charAt ( ctr ) );
				ctrCount = ( Integer ) myFrequency.get ( theCharacter );
				if ( ctrCount == null )
				{
					myFrequency.put ( theCharacter, new Integer ( 1 ) );
				} 
				else {
					myFrequency.put ( theCharacter, new Integer ( ctrCount.intValue () +1 ) );
					myFinalCTR_1 += ctrCount.intValue () +1;
				}
			}
			Iterator myIter = myFrequency.keySet ().iterator ();
			Object myCharKey;
	
			displayOutput4.setText ( ("------  Text First Analysed ------\n") + 
				( " Name:\t\t" + "Frequency"+ "\n" ) +
				( "\tOccurences\t" + "Percentage"+ "\n" ) );
			while ( myIter.hasNext () )
			{
				myCharKey = myIter.next ();
				myPercent_1 = ( ( ctrCount * 100 ) / myFinalCTR_1 );
				displayOutput4.append ( " " + myCharKey + " :\t" + myFrequency.get ( myCharKey ) 
				+ "\t\t" + myPercent_1 + "\n" );
			}
			toggleAnalyse = 2;
		}
		else if ( passedToggle == 2 ) {
			char [] myChars = displaySwapTA_4_3.toCharArray ();
			for ( int ctr = myChars.length-1; ctr >= 0; ctr-- )
			{
				Character theCharacter = new Character ( displaySwapTA_4_3.charAt ( ctr ) );
				ctrCount = ( Integer ) myFrequency.get ( theCharacter );
				if ( ctrCount == null )
				{
					myFrequency.put ( theCharacter, new Integer ( 1 ) );
				} 
				else {
					myFrequency.put ( theCharacter, new Integer ( ctrCount.intValue () +1 ) );
					myFinalCTR_2 += ctrCount.intValue () +1;
				}
			}
			Iterator myIter = myFrequency.keySet ().iterator ();
			Object myCharKey;
			
			displayOutput4.append ( ( "\n" + "------  Text Second Analysed ------\n") + 
				( " Name:\t\t" + "Frequency"+ "\n" ) +
				( "\tOccurences\t" + "Percentage"+ "\n" ) );
			while ( myIter.hasNext () )
			{
				myCharKey = myIter.next ();
				myPercent_2 = ( ( ctrCount * 100 ) / myFinalCTR_2 );
				displayOutput4.append ( " " + myCharKey + " :\t" + myFrequency.get ( myCharKey ) 
					+ "\t\t" + myPercent_1 + "\n" );
			}
			toggleAnalyse = 0;
		}	
		else {
			Toolkit.getDefaultToolkit ().beep ();
			JOptionPane.showMessageDialog ( null, "Please First Enter the Text to Analyse... ", 
				" Information Message ", 
			JOptionPane.INFORMATION_MESSAGE );
			toggleAnalyse = 0;
               setCursor ( null );
		} // End for If-Else
	}	// End performPatternAnalyse Method

The Analyse works properly, but I've got aproblem
withe the percentage result: 0...
Could someone gives some little helps...Many thanks All.
[pre/]

 Numbers        Frequency
          Occurencies Percentage
  a:           23         18%(this is an example of output.)