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SimpleDateFormat outputFormat= new SimpleDateFormat("yyyy-MM-dd"); を使用して、Android で "2013 年 7 月 15 日" を " 2013-07-15" に変換するにはどうすればよいですか?

アップデート

String dates ="15 July 2013";
    try {
            String date="15-July-2013";
            SimpleDateFormat simpledateFormat = new SimpleDateFormat("dd-MMMM-yyyy");
            Date formattedDate=simpledateFormat.parse(date);
            SimpleDateFormat  newDate =new SimpleDateFormat("yyyy-MM-dd");
            String formatDate=newDate.format(formattedDate);
            System.out.println("formatDate: "+formatDate);
    } catch (ParseException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }

エラーログ: java.text.DateFormat.parse(DateFormat.java:626)

07-15 09:46:24.170: W/System.err(23522): at java.text.DateFormat.parse(DateFormat.java:626)
07-15 09:46:24.170: W/System.err(23522): at .CompteCompagnon.onCreate(CompteCompagnon.java:87)
07-15 09:46:24.170: W/System.err(23522): at android.app.Activity.performCreate(Activity.java:5206)
07-15 09:46:24.170: W/System.err(23522): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1083)
07-15 09:46:24.170: W/System.err(23522): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2064)
07-15 09:46:24.170: W/System.err(23522): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2125)
07-15 09:46:24.170: W/System.err(23522): at android.app.ActivityThread.access$600(ActivityThread.java:140)
07-15 09:46:24.170: W/System.err(23522): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1227)
07-15 09:46:24.170: W/System.err(23522): at android.os.Handler.dispatchMessage(Handler.java:99)
07-15 09:46:24.170: W/System.err(23522): at android.os.Looper.loop(Looper.java:137)
07-15 09:46:24.170: W/System.err(23522): at android.app.ActivityThread.main(ActivityThread.java:4898)
07-15 09:46:24.170: W/System.err(23522): at java.lang.reflect.Method.invokeNative(Native Method)
07-15 09:46:24.170: W/System.err(23522): at java.lang.reflect.Method.invoke(Method.java:511)
07-15 09:46:24.170: W/System.err(23522): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1006)
07-15 09:46:24.170: W/System.err(23522): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:773)
07-15 09:46:24.170: W/System.err(23522): at dalvik.system.NativeStart.main(Native Method)
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3 に答える 3

2

This may help you:

Use SimpleDateFormat:

DateFormat originalFormat = new SimpleDateFormat("dd MMMM yyyy");
DateFormat targetFormat = new SimpleDateFormat("yyyy-MM-dd");
Date date = originalFormat.parse(Your Date string);
String formattedDate = targetFormat.format(date);

Also note that parse takes a String, not a Date object, which is already parsed.

Edit:

Change this line: SimpleDateFormat simpledateFormat = new SimpleDateFormat("dd-MMM-yyyy");

to

SimpleDateFormat simpledateFormat = new SimpleDateFormat("dd-MMMM-yyyy");

于 2013-07-15T05:28:53.863 に答える
2

このようなことをしてください

SimpleDateFormat outputFormat= new SimpleDateFormat("yyyy-MM-dd");
SimpleDateFormat formatInputDate = new SimpleDateFormat("dd MMMM yyyy");
Date date=formatInputDate.parse(inputString);
String output=outputFormat.format(date);
于 2013-07-15T05:29:28.857 に答える