/* package whatever; // don't place package name! */
 
import java.util.*;
import java.lang.*;
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
	{
		double resultado= 93.13502;
		Locale.setDefault(Locale.US);
		DecimalFormat format = new DecimalFormat("###,###.0");
		System.out.println(format.format(resultado)); // 93.1
 
        // se mudar o locale, o DecimalFormat muda sua config
		Locale.setDefault(new Locale("pt", "BR"));
		format = new DecimalFormat("###,###.0");
		System.out.println(format.format(resultado)); //93,1
 
        // mas vc pode usar um com locale específico, sem depender do default
		Locale.setDefault(Locale.US);
        NumberFormat nf = NumberFormat.getNumberInstance(new Locale("pt", "BR"));
        DecimalFormat formatter = (DecimalFormat) nf;
        formatter.applyPattern("###,###.0");
		System.out.println(formatter.format(resultado)); //93,1
	}
}

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