//ACTIVITY 1
     
    package com.example.test;
     
    import android.os.Bundle;
    import android.app.Activity;
    import android.content.Intent;
    import android.content.SharedPreferences;
    import android.view.View;
    import android.widget.Button;
    import android.widget.TextView;
     
    public class MainActivity extends Activity {
            TextView t1,t;
     SharedPreferences myPrefs;
            @Override
            protected void onCreate(Bundle savedInstanceState) {
                    super.onCreate(savedInstanceState);
                    setContentView(R.layout.activity_main);
                     t=(TextView) findViewById(R.id.textView1);
     
                    t1=(TextView) findViewById(R.id.textView2);
                    Button b=(Button) findViewById(R.id.button1);
                   
                    b.setOnClickListener(new View.OnClickListener() {
                           
                            @Override
                            public void onClick(View v) {
                                    // TODO Auto-generated method stub
                            //      Intent i = new Intent(MainActivity.this, New.class);
                          //  startActivityForResult(i, 1);
                            startActivity(new Intent(MainActivity.this,New.class));
                            }
                    });
                   

                   
                   
            }
    @Override
    protected void onResume() {
      super.onResume();
      myPrefs = this.getSharedPreferences("myPrefs", MODE_WORLD_READABLE);
      String prefName = myPrefs.getString("key", "nothing");
      t.setText(prefName);
    }     
            @Override
            protected void onActivityResult(int requestCode, int resultCode, Intent data) {
                    // TODO Auto-generated method stub
                     if (requestCode == 1) {
                     if(resultCode == RESULT_OK){
                     String rem=data.getStringExtra("edittextvalue");
                      t1.setText(rem);
            }
                     }
            }
     
    }
     
    //ACTIVITY 2
    package com.example.test;
     
    import android.app.Activity;
    import android.content.Intent;
    import android.content.SharedPreferences;
    import android.os.Bundle;
    import android.widget.EditText;
     
    public class New extends Activity {
            EditText e;
            SharedPreferences myPrefs;
            SharedPreferences.Editor prefsEditor;
            @Override
            protected void onCreate(Bundle savedInstanceState) {
                    // TODO Auto-generated method stub
                    super.onCreate(savedInstanceState);
                    setContentView(R.layout.newx);
                    e=(EditText) findViewById(R.id.editText1);
              myPrefs = this.getSharedPreferences("myPrefs", MODE_WORLD_READABLE);
              prefsEditor = myPrefs.edit();
            }
          @Override
            public void onBackPressed() {
                    // TODO Auto-generated method stub

             String text = e.getText().toString();
             prefsEditor.putString("key", text);
             prefsEditor.commit();  
            
          //  Intent intent = new Intent();
          // intent.putExtra("edittextvalue",e.getText().toString());
          //  setResult(RESULT_OK, intent);        
          //  finish();
                    super.onBackPressed();
            } 
    }