【JAVA】之【string转time方法】

最新推荐文章于 2024-01-10 19:05:39 发布

原创最新推荐文章于 2024-01-10 19:05:39 发布 · 5.4k 阅读

0 ·

CC 4.0 BY-SA版权

文章标签：

#string #java #date #exception #object #class

==== 知识库 ==== 同时被 2 个专栏收录

127 篇文章

订阅专栏

|-- Android开发

71 篇文章

订阅专栏

本文介绍了使用Java的SimpleDateFormat类将字符串转换为日期的方法，包括创建实例、解析字符串和打印日期信息。

第一种：

package org.kodejava.example.util;

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

public class StringToTimeExample {
    public static void main(String[] args) {        
        //
        // A string of time information
        //
        String time = "15:30:18";

        //
        // Create an instance of SimpleDateFormat with the specified
        // format.
        //
        DateFormat sdf = new SimpleDateFormat("hh:mm:ss");
        try {
            // 
            // The get the date object from the string just called the 
            // parse method and pass the time string to it. The method 
            // throws ParseException if the time string is in an 
            // invalid format. But remember as we don't pass the date 
            // information this date object will represent the 1st of
            // january 1970.
            Date date = sdf.parse(time);            
            System.out.println("Date and Time: " + date);
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

第二种：

public static Time parseHHMM(String time) { Time t = new Time(); // if the format is not "HH:MM" we return null try { String hours = time.substring(0, 2); String minutes = time.substring(3); t.hour = Integer.parseInt(hours); t.minute = Integer.parseInt(minutes); } catch (Exception e) // TODO is this nice enough? { return null; } return t; }