title: Android Studio App Unfortunately has stopped
body: <p>I'm new to Android and I was practicing, when i finished this practice app i ran it but it says "unfortunately has stopped" where is the problem?My app looks like a simple log in screen and i don't think there's a problem with the XML file.</p>
  
  <pre><code>package com.mycompany.testbutton;
  
  import android.media.Image;
  import android.support.v7.app.ActionBarActivity;
  import android.os.Bundle;
  import android.view.Menu;
  import android.view.MenuItem;
  import android.view.View;
  import android.widget.Button;
  import android.widget.EditText;
  import android.widget.Toast;
  
  
  
  public class MainActivity extends ActionBarActivity {
  Button buttonLog = (Button)findViewById(R.id.button1);
  EditText userName = (EditText)findViewById(R.id.usernameText);
  EditText passWord = (EditText)findViewById(R.id.passwordText);
  
  @Override
  protected void onCreate(Bundle savedInstanceState) {
      super.onCreate(savedInstanceState);
      setContentView(R.layout.activity_main);
  
  
      buttonLog.setOnClickListener(new View.OnClickListener() {
          @Override
          public void onClick(View v) {
              String username = String.valueOf(userName.getText());
              String password = String.valueOf(passWord.getText());
              String allTogetherToast = "Your Email is " + username + " and your Password is " + password;
              Toast.makeText(MainActivity.this, allTogetherToast, Toast.LENGTH_LONG).show();
  
  
          }
      });
  }
  
  
  @Override
  public boolean onCreateOptionsMenu(Menu menu) {
      // Inflate the menu; this adds items to the action bar if it is present.
      getMenuInflater().inflate(R.menu.menu_main, menu);
      return true;
  }
  
  @Override
  public boolean onOptionsItemSelected(MenuItem item) {
      // Handle action bar item clicks here. The action bar will
      // automatically handle clicks on the Home/Up button, so long
      // as you specify a parent activity in AndroidManifest.xml.
      int id = item.getItemId();
  
      //noinspection SimplifiableIfStatement
      if (id == R.id.action_settings) {
          return true;
      }
  
      return super.onOptionsItemSelected(item);
  }
  </code></pre>
  
  <p>}</p>