/* package whatever; // don't place package name! */
 
import java.util.*;
import java.lang.*;
import java.io.*;
import java.text.*;
 
/* Name of the class has to be "Main" only if the class is public. */
class Ideone
{
	public static void main (String[] args) throws java.lang.Exception
	{
		// your code goes here
		String a = "1.21";
		System.out.println(a);
 
		DecimalFormatSymbols otherSymbols = new DecimalFormatSymbols();
		otherSymbols.setDecimalSeparator(',');
        otherSymbols.setGroupingSeparator('.');
        DecimalFormat df = new DecimalFormat("#.#", otherSymbols);
 
        Double returnValue = Double.valueOf(df.format("4.75"));
 
		System.out.println(String.valueOf(returnValue));
	}
}

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