decimal up to 6 places in java

/**
 * @author lautturi.com
 * Java example: decimal precision / double accuracy in java
 */

import java.util.*;
import java.time.LocalDate;
import java.time.format.DateTimeFormatter;

public class Lautturi {
	public static void main(String[] args) {

		double num = 3.141592653;
		System.out.format("%.6f", num);
		
	}
}

output:

3.141593