java convert double to string

/**
 * @author lautturi.com
 * Java example:converting double to string in java
 */

import java.util.*;

public class Lautturi {

	public static void main(String[] args) {

		double d = 5321;
		String str = Double.toString(d);
		System.out.println(str);

	}
}

output:

5321.0