[JAVA] Check when moss with SimpleDateFormat parse

Thu, 13 Jul 2017 18:00:15 +0900 In Java, do you want to convert a character string of this format to Date type?

Like this

public class Main {
    public static void main(String[] args) throws ParseException {
        SimpleDateFormat sdf = new SimpleDateFormat("EEE, d MMM yyyy HH:mm:ss Z");
        System.out.println(sdf.parse("Thu, 13 Jul 2017 18:00:15 +0900"));
    }
}

It can be realized by using the parse method of SimpleDateFormat ... I wrote in various articles, but when I actually execute it

Exception in thread "main" java.text.ParseException: Unparseable date: "Thu, 13 Jul 2017 18:00:15 +0900"
	at java.text.DateFormat.parse(DateFormat.java:366)
	at Main.main(Main.java:15)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at com.intellij.rt.execution.application.AppMain.main(AppMain.java:147)

An exception like this will occur.

So rewrite it like this.

public class Main {
    public static void main(String[] args) throws ParseException {
        SimpleDateFormat sdf = new SimpleDateFormat("EEE, d MMM yyyy HH:mm:ss Z", Locale.ENGLISH);
        System.out.println(sdf.parse("Thu, 13 Jul 2017 18:00:15 +0900"));
    }
}

On the third line, Locale is passed as the second argument of the SimpleDateFormat constructor.

This will give you the output Thu Jul 13 18:00:15 JST 2017.

Cause

I mentioned the cause in this article, so if you are interested, please have a look.

Check when moss with SimpleDateFormat parse # 60 --Yurufuwa Technical Diary