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  1. package com.example.manali.likeex;
  2.  
  3. import android.app.Activity;
  4. import android.support.v7.app.AppCompatActivity;
  5. import android.os.Bundle;
  6. import android.util.Log;
  7. import android.view.View;
  8. import android.widget.Button;
  9. import android.widget.Toast;
  10.  
  11. import com.google.firebase.database.DatabaseReference;
  12. import com.google.firebase.database.FirebaseDatabase;
  13.  
  14.  
  15.  
  16. public class MainActivity2 extends Activity implements View.OnClickListener {
  17. Button senlike;
  18. private DatabaseReference mdatabase;
  19. private DatabaseReference user1;
  20.  
  21. int c;
  22. @Override
  23. protected void onCreate(Bundle savedInstanceState) {
  24. super.onCreate(savedInstanceState);
  25. setContentView(R.layout.activity_main2);
  26. Button sendlike = (Button) findViewById(R.id.b1);
  27. mdatabase= FirebaseDatabase.getInstance().getReference();
  28. user1=mdatabase.child("Teacher");
  29. sendlike.setOnClickListener(this);
  30.  
  31. }
  32.  
  33. if(user1!=null)
  34. {
  35. c++;
  36.  
  37. }
  38.  
  39.  
  40.  
  41. //sets value to user1 node
  42. user1.setValue(c);
  43.  
  44. }
  45. public DatabaseReference getUser1()
  46. {
  47. return user1;
  48.  
  49. }
  50. }
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