android - How can we override getText method in EditText? -

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i have override method in myedittext class:

@override public editable gettext() {     editable s = (editable) super.gettext();     s.tostring().replace("$", "").trim();     return s; }

mainactivity class is:

public class mainactivity extends activity implements onclicklistener { myedittext myedittext; button btn; textview tv;  @override public void oncreate(bundle savedinstancestate) {     super.oncreate(savedinstancestate);     setcontentview(r.layout.try_layout);      myedittext = new myedittext(this);      btn = (button) findviewbyid(r.id.btn);     tv = (textview) findviewbyid(r.id.tv);     btn.setonclicklistener(this);  } @override public void onclick(view v) {      tv.settext(myedittext.gettext().tostring());     }

}

when entered values in edittext click on btn nothing text edittext why.

why not assign 's' before return?

s = s.tostring().replace("$", "").trim();

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