编辑代码

import java.util.*;
import java.text.*;




class Main {
	public static void main(String[] args) {
		//System.out.println("Hello world!");

        String Str = new String("17333654089");
        System.out.println("字符串的哈希码为 :" +"\n"+Str.hashCode() +"\n");

        Date date = new Date();
        //System.out.println(date.toString());
        System.out.println(date+"\n"+"\n");

        SimpleDateFormat ft = new SimpleDateFormat("yyyy-MM-dd hh:mm:ss");
        String nowdate=new SimpleDateFormat("yyyy-MM-dd hh:mm:ss").format(date);

        System.out.println("当前时间: \n" + ft.format(date));
        System.out.println(nowdate);

        String fs=String.format(nowdate);
        System.out.println(fs);



	}
}