/* package whatever; // don't place package name! */
 
import java.util.*;
import java.lang.*;
import java.io.*;
 
/* 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
 
        double number = 0.123456;
        // ponto
        System.out.printf("%5.2e\n", number); 
        // vírgula 
        System.out.printf(new Locale("pt",  "BR"), "%5.2e", number); 
 
	}
}

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