Reading file in Android SDK -

i have 1 class called "global" , 2 other activities. in each activity want create instance of class global reading first line of text file called "textfile". reason, not work

here code of global class (in file global.java):

import android.app.activity; public class global extends activity {     public string line;     public global() {         inputstream file = getresources().openrawresource(r.raw.textfile);         bufferedreader input = new bufferedreader(new inputstreamreader(file));         try {             line = input.readline();         } catch (ioexception e) {             e.printstacktrace();         }     } }  

here codes antivity called "helloworld" (in file helloworld.java) has instance of class global , display of first line of "textfile"

public class helloworld extends activity{        global gb;     textview mytv;     protected void oncreate(bundle savedinstancestate) {         // todo auto-generated method stub         super.oncreate(savedinstancestate);         setcontentview(r.layout.helloworld);             gb=new global();         mytv = (textview) findviewbyid(r.id.textview1);         mytv.settext("first line is: "+gb.line);     } 

}

there not need unnecessarily have global extending activity class.

what can pass context in global constructor.

the correct way be

helloworld.java

import android.app.activity; import android.os.bundle; import android.widget.textview;      public class helloworld extends activity{            global gb;         textview mytv;         protected void oncreate(bundle savedinstancestate) {             // todo auto-generated method stub             super.oncreate(savedinstancestate);             setcontentview(r.layout.helloworld);              gb=new global(this);              mytv = (textview) findviewbyid(r.id.textview1);             mytv.settext("first line is: "+gb.getline());         }     } 

global.java

import java.io.bufferedreader; import java.io.ioexception; import java.io.inputstream; import java.io.inputstreamreader;   public class global {     private abcactivity abcactivity;     public string line;      public global(abcactivity abcactivity) {         this.abcactivity = abcactivity;     }      public string getline() {         inputstream file = abcactivity.getresources().openrawresource(                 r.raw.textfile);         bufferedreader input = new bufferedreader(new inputstreamreader(file));         try {             line = input.readline();             return line;         } catch (ioexception e) {             e.printstacktrace();             return "error reading file!";         }     }  }