title: Android Studio keeps giving me nullpointerexception
body: <p>Hi i am doing a project that is due wednesday and i have spent over 13 hours trying to get Android studio working again, first their was a problem with the gradle and now i keep getting a nullpointerexception even though it same code that was working before. here is the code, please help? because i am stuck and could be doing my project rather that trying to solve android studios problems. by the way there are no errors within the code it says but here is the code.</p>
  
  <pre><code>            package ie.wit.fitnessmadeeasy;
  
  
              import android.content.Intent;
              import android.support.v7.app.AppCompatActivity;
              import android.os.Bundle;
              import android.util.Log;
              import android.view.View;
              import android.widget.EditText;
              import android.widget.TextView;
              import android.widget.Toast;
  
              public class LogActivity extends AppCompatActivity {
  
              DataBaseHelper helper = new DataBaseHelper(this);
  
              EditText uname = (EditText) findViewById(R.id.et_username);
              String unstr = uname.getText().toString();
             EditText pass = (EditText) findViewById(R.id.et_password);
             String passstr = pass.getText().toString();
  
                @Override
             protected void onCreate(Bundle savedInstanceState) {
              super.onCreate(savedInstanceState);
               setContentView(R.layout.activity_log);
  
  
              TextView registerLink = (TextView) findViewById(R.id.regHere);          //register link creates a link between the two pages
  
            registerLink.setOnClickListener(new View.OnClickListener() {
             @Override
             public void onClick(View v) {
              Intent registerIntent = new Intent(LogActivity.this,   RegisterActivity.class);
              LogActivity.this.startActivity(registerIntent);  //what this does it creates an intent that opens the registeravtivity then it tells the current activity to perform the intent and open the register page
          }
      });
  }
  
  
  // Button login = (Button) findViewById(R.id.login);
  
  
  
  
  public void onLogClick(View view) {
      if (view.getId() == R.id.login) {
  
  
          String Password = helper.searchPassstr(unstr);
          Log.v("pass", passstr);
          Log.v("pass", Password);
  
  
  
          if (passstr.equals(Password)) {
  
              Intent i = new Intent(LogActivity.this, UserAreaActivity.class);
              i.putExtra("username", unstr);
  
              startActivity(i);
          } else {
              Toast temp = Toast.makeText(LogActivity.this, "Username and Password don't Match", Toast.LENGTH_SHORT);
              temp.show();
          }
      }
  
  }
  </code></pre>
  
  <p>}</p>
  
  <pre><code>   package ie.wit.fitnessmadeeasy;
  
  
     import android.content.Intent;
     import android.support.v7.app.AppCompatActivity;
     import android.os.Bundle;
     import android.view.View;
     //import android.widget.Button;
     import android.widget.EditText;
     import android.widget.Toast;
  
  
  
      public class RegisterActivity extends AppCompatActivity {
  
      DataBaseHelper helper = new DataBaseHelper(this);
  
  
      final EditText name = (EditText) findViewById(R.id.et_name);
      final EditText username = (EditText) findViewById(R.id.et_username);
      final EditText password1 = (EditText) findViewById(R.id.et_password);
     final EditText password2 = (EditText) findViewById(R.id.et_password);
  
     String namestr = name.getText().toString();
     String usernamestr = username.getText().toString();
     String password1str = password1.getText().toString();
     String password2str = password2.getText().toString();
  
     @Override
      protected void onCreate(Bundle savedInstanceState) {
      super.onCreate(savedInstanceState);
      setContentView(R.layout.activity_register);
  
  
  
     // final EditText password2 = (EditText) findViewById(R.id.et_password);
  
  
      name.setOnFocusChangeListener(new View.OnFocusChangeListener() {
          @Override
          public void onFocusChange(View v, boolean hasFocus) {
  
              if(name.getText().length()==0){
  
                  name.setError("Fill Out");
              }
             else if(username.getText().length()==0){
  
                  username.setError("Fill Out");
              }
  
  
          }
  
      });
  
  
  }
  
  
  public void onRegClick(View v)
  {
  
      if(v.getId() == R.id.confirm)
      {
         //  EditText age = (EditText) findViewById(R.id.et_age); //age is a final variable and is only assigned to activity_register as a view
  
  
         // EditText name = (EditText) findViewById(R.id.et_name);
         // EditText username = (EditText) findViewById(R.id.et_username);
         // EditText password1 = (EditText) findViewById(R.id.et_password);
         // EditText password2 = (EditText) findViewById(R.id.et_password2);
  
  
  
  
          if(namestr.equals("")){
              Toast pass = Toast.makeText(RegisterActivity.this, "Enter Name!", Toast.LENGTH_SHORT);
              pass.show();
          }
          if(usernamestr.equals("")){
              Toast pass = Toast.makeText(RegisterActivity.this, "Enter Username!", Toast.LENGTH_SHORT);
              pass.show();
          }
          if(password1str.equals("")){
              Toast pass = Toast.makeText(RegisterActivity.this, "Enter Password!", Toast.LENGTH_SHORT);
              pass.show();
          }
          if(!password1str.equals(password2str))
          {
              //popup message
              Toast pass = Toast.makeText(RegisterActivity.this, "Passwords don't match!", Toast.LENGTH_SHORT);
              pass.show();
          }
           else{
  
              // String namestr = name.getText().toString();
              //insert details
              RegRequest reg = new RegRequest();
              reg.setEt_name(namestr);
              reg.setEt_username(usernamestr);
              reg.setEt_password(password1str);
             // r.setEt_age(agestr);
  
              Toast success = Toast.makeText(RegisterActivity.this, "Success", Toast.LENGTH_SHORT);
              success.show();
  
  
              Intent i = new Intent(RegisterActivity.this, LogActivity.class);
  
              startActivity(i);
  
              helper.insertUser(reg);
          }
  
  
  
  
      }
  }
  </code></pre>
  
  <p>}</p>
  
  <pre><code>            package ie.wit.fitnessmadeeasy;
             public class RegRequest{
             String et_name , et_username, et_password;
  </code></pre>
  
  <p>// int et_age;</p>
  
  <pre><code>          public void setEt_name(String et_name)
             {
            this.et_name = et_name;
             }
  
            public String getEt_name()
            {
           return this.et_name;
             }
  
  public void setEt_username(String et_username)
  {
      this.et_username = et_username;
  }
  
  public String getEt_username()
  {
      return this.et_username;
  }
  
  public void setEt_password(String et_password)
  {
      this.et_password = et_password;
  }
  
  public String getEt_password()
  {
      return this.et_password;
  }
  </code></pre>
  
  <p>}</p>
  
  <pre><code>       at ie.wit.fitnessmadeeasy.LogActivity.&lt;init&gt;(LogActivity.java:17)
  </code></pre>