/* package whatever; // don't place package name! */
 
import java.util.*;
import java.math.*;
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
	{
		BigDecimal bdVal = new BigDecimal("3.141592653");
		BigDecimal rounded = bdVal.setScale(4, RoundingMode.HALF_UP);
		DecimalFormat decFormat = new DecimalFormat("0.000000000");
		String formatted = decFormat.format(rounded);
		System.out.println(formatted);
	}
}

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