START ACTIVITY FOR RESULT

FIRST CLASS:



public class HelloWorld extends Activity {
/** Called when the activity is first created. */
String s;
TextView t;


@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
t = (TextView) findViewById(R.id.TextView01);
Button button = (Button) findViewById(R.id.Button01);
button.setOnClickListener(new OnClickListener() {


public void onClick(View v) {
Intent intent = new Intent(HelloWorld.this,
SecondActivity.class);
startActivityForResult(intent, 0);


}


});
}


@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
String s = data.getStringExtra("name");
t.setText(s);


}


}
SECOND CLASS:



public class SecondActivity extends Activity {
EditText te;
String s;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
   super.onCreate(savedInstanceState);
   setContentView(R.layout.second);
   //TextView te=(TextView)findViewById(R.id.TextView01);
  te=(EditText)findViewById(R.id.EditText01);
  Button  b=(Button)findViewById(R.id.Button01);
  b.setOnClickListener(new OnClickListener() {


public void onClick(View v) {
s=te.getText().toString();
Intent intent = new Intent();
intent.putExtra("name", s);
setResult(RESULT_OK, intent);
finish();

}


});
  
}
}