Java SimpleDateFormat parse()方法及示例

SimpleDateFormat类 的 parse() 方法用于解析字符串中的文本，以生成日期。该方法从起始位置给出的索引开始解析文本。
语法：

public Date parse(String the_text, ParsePosition position)

参数： 该方法需要两个参数：

返回值 ：该方法要么返回从字符串解析出的日期，要么在出现错误时返回空值。
以下程序说明了SimpleDateFormat的parse()方法的工作原理：
例子1：

// Java Code to illustrate parse() method import java.text.*;import java.util.Calendar; public class SimpleDateFormat_Demo {    public static void main(String[] args)        throws InterruptedException    {        SimpleDateFormat SDFormat            = new SimpleDateFormat("MM/ dd/ yy");         try {            Calendar cal = Calendar.getInstance();             // Use of .parse() method to parse            // Date From String            String dt = "10/ 27/ 16";            System.out.println("The unparsed"                               + " string is: " + dt);             cal.setTime(SDFormat.parse(dt));            System.out.println("Time parsed: "                               + cal.getTime());        }        catch (ParseException except) {            except.printStackTrace();        }    }}

输出

The unparsed string is: 10/ 27/ 16Time parsed: Thu Oct 27 00:00:00 UTC 2016

例2：

// Java Code to illustrate parse() method import java.text.*;import java.util.Calendar; public class SimpleDateFormat_Demo {    public static void main(String[] args)        throws InterruptedException    {        SimpleDateFormat SDFormat            = new SimpleDateFormat("MM/ dd/ yy");         try {            Calendar cal = Calendar.getInstance();             // Use of .parse() method to parse            // Date From String            String dt = "01/ 29/ 19";            System.out.println("The unparsed"                               + " string is: " + dt);             cal.setTime(SDFormat.parse(dt));            System.out.println("Time parsed: "                               + cal.getTime());        }        catch (ParseException except) {            except.printStackTrace();        }    }}

输出

The unparsed string is: 01/ 29/ 19Time parsed: Tue Jan 29 00:00:00 UTC 2019