Java-把日期字符串转换成另一种格式的日期字符串

package com.example.demo.utils;

import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;

public class DateTimeTrans {

    public static void main(String[] args) {

        Date date = new Date();
        try {
            date = new SimpleDateFormat("HH:mm").parse("13:12:11");
        } catch (ParseException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        String now = new SimpleDateFormat("HH:mm").format(date);
        System.out.println(now);//13:12
    }
}