i got the error java.text.ParseException: Unparseable date

I want the date format as dd-MMM-yyyy. My code is:

String v_date_str="Sun Mar 06 11:28:16 IST 2011";
        DateFormat formatter;
        formatter = new SimpleDateFormat("dd-MMM-yyyy");
        Date date_temp=null;
        try {
            date_temp = (Date) formatter.parse(v_date_str);
        } catch (ParseException ex) {
            Logger.getLogger(Attendance_Calculation.class.getName()).log(Level.SEVERE, null, ex);
        }
        System.out.println("output: "+date_temp);

But, I got the error as:

    The log message is null.
java.text.ParseException: Unparseable date: "Sun Mar 06 11:28:16 IST 2011"
        at java.text.DateFormat.parse(DateFormat.java:337)
        at org.fes.pis.jsf.main.Attendance_Calculation.btn_show_pending_appl_action(Attendance_Calculation.java:415)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:597)
        at com.sun.el.parser.AstValue.invoke(AstValue.java:187)
        at com.sun.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:297)
        at com.sun.facelets.el.TagMethodExpression.invoke(TagMethodExpression.java:68)
        at javax.faces.event.MethodExpressionActionListener.processAction(MethodExpressionActionListener.java:99)
        at javax.faces.event.ActionEvent.processListener(ActionEvent.java:88)
        at javax.faces.component.UIComponentBase.broadcast(UIComponentBase.java:771)
        at javax.faces.component.UICommand.broadcast(UICommand.java:372)
        at javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:475)
        at javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:756)
        at com.sun.faces.lifecycle.InvokeApplicationPhase.execute(InvokeApplicationPhase.java:82)
        at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:100)
        at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:118)
        at com.sun.faces.extensions.avatar.lifecycle.PartialTraversalLifecycle.execute(PartialTraversalLifecycle.java:94)
        at javax.faces.webapp.FacesServlet.service(FacesServlet.java:265)
        at org.apache.catalina.core.ApplicationFilterChain.servletService(ApplicationFilterChain.java:427)
        at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:315)
        at org.apache.catalina.core.StandardContextValve.invokeInternal(StandardContextValve.java:287)
        at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:218)
        at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:648)
        at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:593)
        at com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:94)
        at com.sun.enterprise.web.PESessionLockingStandardPipeline.invoke(PESessionLockingStandardPipeline.java:98)
        at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:222)
        at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:648)
        at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:593)
        at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:587)
        at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:1093)
        at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:166)
        at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:648)
        at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:593)
        at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:587)
        at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:1093)
        at org.apache.coyote.tomcat5.CoyoteAdapter.service(CoyoteAdapter.java:291)
        at com.sun.enterprise.web.connector.grizzly.DefaultProcessorTask.invokeAdapter(DefaultProcessorTask.java:666)
        at com.sun.enterprise.web.connector.grizzly.DefaultProcessorTask.doProcess(DefaultProcessorTask.java:597)
        at com.sun.enterprise.web.connector.grizzly.DefaultProcessorTask.process(DefaultProcessorTask.java:872)
        at com.sun.enterprise.web.connector.grizzly.DefaultReadTask开发者_JS百科.executeProcessorTask(DefaultReadTask.java:341)
        at com.sun.enterprise.web.connector.grizzly.ssl.SSLReadTask.process(SSLReadTask.java:444)
        at com.sun.enterprise.web.connector.grizzly.ssl.SSLReadTask.doTask(SSLReadTask.java:230)
        at com.sun.enterprise.web.connector.grizzly.TaskBase.run(TaskBase.java:264)
        at com.sun.enterprise.web.connector.grizzly.ssl.SSLWorkerThread.run(SSLWorkerThread.java:106)

Thanks for any help....

But, I want the date in date format as dd-MMM-yyyy.

---

You should change your code to:

String v_date_str="Sun Mar 06 11:28:16 IST 2011";
DateFormat formatter;
formatter = new SimpleDateFormat("EEE MMM d HH:mm:ss zzz yyyy");
Date date_temp=null;
try {
        date_temp = (Date) formatter.parse(v_date_str);
    } catch (ParseException ex) {
  Logger.getLogger(Attendance_Calculation.class.getName()).log(Level.SEVERE, null, ex);
}
System.out.println("output: "+date_temp);

You are using the wrong date format for parsing the date.

---

Use this it will work:

SimpleDateFormat formatter=new SimpleDateFormat("EEE MMM d HH:mm:ss zzz yyyy");

You cannot parse a date with a SimpleDateFormat that is set up with a different format

---

In this code you are telling Java to parse the date using the given format, and then print it. The format string you use must therefore match the format of the input date string. Since it doesn't, it's not surprising that it doesn't work.

To convert dates between two different formats you probably want to use two different DateFormat objects, one for the parsing and one for the printing.

---

Try the following code:

import java.text.DateFormat;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Locale;
import java.util.logging.Level;
import java.util.logging.Logger;


public class SimpleDateFormat02 {

public static void main(String[] args) throws ParseException {
    String v_date_str="Sun Mar 06 11:28:16 IST 2011";
    Date v_date = new SimpleDateFormat("EEE MMM dd HH:mm:ss zzz yyyy", Locale.ENGLISH).parse(v_date_str);
    DateFormat formatter = null;

    formatter = new SimpleDateFormat("dd-MMM-yyyy");
    Date date_temp=null;
    try {
        date_temp = (Date) formatter.parse("31-Dec-2012"); // String of same format a formatter

    } catch (ParseException ex) {
        //Logger.getLogger(Attendance_Calculation.class.getName()).log(Level.SEVERE, null, ex);
        ex.printStackTrace();
    }
    System.out.println("output: "+ formatter.format(v_date));
}
}

This one gives you the desired output!

---

This works very well with me

SimpleDateFormat format1 = new SimpleDateFormat("dd-MM-yyyy");

String formatted = format1.format(objectValue);
Date javaDate = format1.parse(formatted);

---

i got the solution as,

String v_date_str = "Sun Mar 06 11:28:16 IST 2011";
    DateFormat formatter = new SimpleDateFormat("EEE MMM d HH:mm:ss zzz yyyy");
    String d_temp;
    Date dTemp;
    try {
        dTemp = formatter.parse(v_date_str);
        formatter=new SimpleDateFormat("dd-MMM-yyyy");
        d_temp=formatter.format(dTemp);
        System.out.println("val : " + d_temp);
    } catch (ParseException ex) {
    }