android - Passing data with intents -

why won't work? trying pass editable string 1 activity another. cannot work. string passed through intent have pre defined? if so, how can pass editable string?

   @override   public void onclick(view v)       {              // todo auto-generated method stub          textout.settext(textin.gettext());              intent intent = new  intent(tutorialone.this,mainactivity.class);         intent.putextra("text", textin.gettext());         startactivity(intent);      }   public class mainactivity extends activity    {  textview gettext;  @override protected void oncreate(bundle savedinstancestate) {     super.oncreate(savedinstancestate);     setcontentview(r.layout.activity_main);     gettext = (textview) findviewbyid(r.id.textview1);     intent intent = getintent();     intent.getextras().getstring("text");     string s = intent.getstringextra("text");     gettext.settext(s);     gettext.settextcolor(color.white);  } 

use instead of this.

 @override   public void onclick(view v)       {              // todo auto-generated method stub         textout.settext(string.valueof(textin.gettext()));         intent intent = new  intent(tutorialone.this,mainactivity.class);         intent.putextra("text", string.valueof(textin.gettext()));         startactivity(intent);      } 

instead of this.

 @override   public void onclick(view v)       {              // todo auto-generated method stub          textout.settext(textin.gettext());              intent intent = new  intent(tutorialone.this,mainactivity.class);         intent.putextra("text", textin.gettext());         startactivity(intent);      }