context menu in android

import android.app.Activity;
import android.os.Bundle;
import android.view.ContextMenu;
import android.view.MenuItem;
import android.view.View;
import android.view.ContextMenu.ContextMenuInfo;
import android.widget.TextView;
import android.widget.Toast;

public class ContextMenuEx extends Activity {
    /** Called when the activity is first created. */
   
TextView tv;
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        tv=(TextView)findViewById(R.id.tv1);
        registerForContextMenu(tv);
    }
    public void onCreateContextMenu(ContextMenu menu,View v,ContextMenuInfo m)
    {
    super.onCreateContextMenu(menu, v, m);
    menu.add("Edit");
    menu.add("Delete");
    menu.add("Exit");
    }
    public boolean onContextItemSelected(MenuItem item)
    {
    if(item.getTitle()=="Edit")
    {
    Toast.makeText(this,item.getTitle(),Toast.LENGTH_LONG).show();
    }
    else if(item.getTitle()=="Delete")
    {
    Toast.makeText(this,item.getTitle(),Toast.LENGTH_LONG).show();
   
    }
    else if(item.getTitle()=="Exit")
    {
    Toast.makeText(this,item.getTitle(),Toast.LENGTH_LONG).show();
    }
    return super.onContextItemSelected(item);
    }
}