java - Unreachable Code error -


i making app called rome, city of rome. have activity called eten means food , want activity open pdf-file called etenlijst.pdf when openened.

i got following code:

package com.example.rome;  import android.os.bundle; import android.app.activity; import android.view.menu; import android.view.menuitem; import android.support.v4.app.navutils; import android.content.intent; import android.widget.button; import android.view.view; import android.widget.toast; import android.net.uri; import java.io.file; import android.content.activitynotfoundexception;    public class eten extends activity {  @override protected void oncreate(bundle savedinstancestate) {     super.oncreate(savedinstancestate);     setcontentview(r.layout.activity_eten);     // show button in action bar.     // getactionbar().setdisplayhomeasupenabled(true); }  @override public boolean oncreateoptionsmenu(menu menu) {     // inflate menu; adds items action bar if present.     getmenuinflater().inflate(r.menu.activity_eten, menu);     return true; }  @override public boolean onoptionsitemselected(menuitem item) {     switch (item.getitemid()) {     case android.r.id.home:         // id represents home or button. in case of         // activity, button shown. use navutils allow users         // navigate 1 level in application structure.         // more details, see navigation pattern on android design:         //         // http://developer.android.com/design/patterns/navigation.html#up-vs-back         //         navutils.navigateupfromsametask(this);         return true;     }     return super.onoptionsitemselected(item);       button openpdf = (button) findviewbyid(r.id.openpdfbutton);     openpdf.setonclicklistener(new view.onclicklistener()     {          public void onclick(view v)          {             file pdffile = new file("/rome/etenlijst.pdf");              if(pdffile.exists())              {                 uri path = uri.fromfile(pdffile);                  intent pdfintent = new intent(intent.action_view);                 pdfintent.setdataandtype(path, "application/pdf");                 pdfintent.setflags(intent.flag_activity_clear_top);                  try                 {                     startactivity(pdfintent);                 }                 catch(activitynotfoundexception e)                 {                     toast.maketext(eten.this, "installeer een geschikte applicatie om pdf's mee te openen", toast.length_long).show();                  }             }          }     }); }    }

but @ line containing: button openpdf = (button) findviewbyid(r.id.openpdfbutton); openpdf.setonclicklistener(new view.onclicklistener() {

eclipse gives me error: unreachable code have no idea how solve this, asking you. know how solve , why error comes up?

thanks in advance, ide

p.s. not native-english speaker please @ question , not @ grammar.

edit:

i got following helpful answers:

package com.example.rome;  import android.os.bundle; import android.app.activity; import android.view.menu; import android.view.menuitem; import android.support.v4.app.navutils; import android.content.intent; import android.widget.button; import android.view.view; import android.widget.toast; import android.net.uri; import java.io.file; import android.content.activitynotfoundexception;    public class eten extends activity {  @override protected void oncreate(bundle savedinstancestate) { super.oncreate(savedinstancestate); setcontentview(r.layout.activity_eten); // show button in action bar. // getactionbar().setdisplayhomeasupenabled(true);        /****  looks place   *****/     button openpdf = (button) findviewbyid(r.id.openpdfbutton);     openpdf.setonclicklistener(new view.onclicklistener()     {      public void onclick(view v)      {         file pdffile = new file("/rome/etenlijst.pdf");          if(pdffile.exists())          {             uri path = uri.fromfile(pdffile);              intent pdfintent = new intent(intent.action_view);             pdfintent.setdataandtype(path, "application/pdf");             pdfintent.setflags(intent.flag_activity_clear_top);              try             {                 startactivity(pdfintent);             }             catch(activitynotfoundexception e)             {                 toast.maketext(eten.this, "installeer een geschikte applicatie om pdf's mee te openen", toast.length_long).show();              }         }      } }); } }

but whenever go activity in app or click button won't open file or give toast? why?

after line return super.onoptionsitemselected(item); before button openpdf = (button) findviewbyid(r.id.openpdfbutton);, function return , hence next line (and lines after that) not executed.

your logic should such return should last statement of block occurs in.


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