Java - Write code to convert Date value in long to String

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Requirements

Write code to convert Date value in long to String

return a string in format yyyy/MM/dd

Hint

Use SimpleDateFormat

Demo

//package com.book2s;

import java.text.SimpleDateFormat;

import java.util.Date;

public class Main {
    public static void main(String[] argv) {
        long time = 42;
        System.out.println(DateStr(time));
    }// w w w  . ja  va 2  s  .  c om

    public static String DateStr(long time) {
        SimpleDateFormat format = new SimpleDateFormat("yyyy/MM/dd");
        Date date = new Date(time * 1000);
        String timeStr = format.format(date);
        return timeStr;
    }
}