/* 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
	{
		Calendar c = Calendar.getInstance();
		c.set(Calendar.YEAR, 1970);
		c.set(Calendar.MONTH, 0);
		c.set(Calendar.DAY_OF_MONTH, 1);
 
		c.add(Calendar.SECOND, 1499090900);
 
		System.out.println(c.getTime().getTime()); // 1900年1月1日からのミリ秒
		System.out.println(c.getTime()); // Date型
 
	}
}

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