Not an enclosing class error Android Studio

Question

I am new in android development and do not have an in depth knowledge of Java  I am stuck on a problem for a long time  I am trying to open a new activity on button click  But I am getting an error that error  not an enclosing class  Katra home   Here is the code for MainActivity java  public class MainActivity extends Activity    Override protected void onCreate Bundle savedInstanceState        super onCreate savedInstanceState       setContentView R layout activity main       Button btn  Button findViewById R id bhawan1      btn setOnClickListener new View OnClickListener             public void onClick View v                Intent myIntent   new Intent Katra home this  Katra home class               Katra home this startActivity myIntent                       And this is the code for Katra home java  public class Katra home extends BaseActivity    protected static final float MAX TEXT SCALE DELTA   0 3f   private ViewPager mPager  private NavigationAdapter mPagerAdapter  private SlidingTabLayout mSlidingTabLayout  private int mFlexibleSpaceHeight  private int mTabHeight     Override protected void onCreate Bundle savedInstanceState        super onCreate savedInstanceState       setContentView R layout katra home        ActionBar ab   getSupportActionBar        if  ab    null            ab setDisplayHomeAsUpEnabled true           ab setHomeButtonEnabled true           Though I have seen many answers on stackoverflow but I could not understand them as I am new in android development  So I would like to ask what changes do I need to make in my code to make it work

User · Answer

you are calling the context of not existing activity   so just replace your code in onClick View v  as Intent intent new Intent this Katra home class   startActivity intent   it will definitely works

User · Answer

replace code in onClick   method with this   Intent myIntent   new Intent this  Katra home class   startActivity myIntent

User · Answer

String user email   email getText   toString   trim    firebaseAuth      createUserWithEmailAndPassword user email user password       addOnCompleteListener new OnCompleteListener lt AuthResult gt               Override         public void onComplete  NonNull Task lt AuthResult gt  task                if task isSuccessful                      Toast makeText RegistraionActivity this   Registration sucessful   Toast LENGTH SHORT  show                    startActivities new Intent RegistraionActivity this MainActivity class                 else                  Toast makeText RegistraionActivity this   Registration failed   Toast LENGTH SHORT  show

User · Answer

startActivity new Intent this  Katra home class      try this one it will be work

User · Answer

Intent myIntent   new Intent MainActivity this  Katra home class   startActivity myIntent     This Should the perfect one

User · Answer

It should be   Intent myIntent   new Intent this  Katra home class   startActivity myIntent     You have to use existing activity context to start new activity  new activity is not created yet  and you cannot use its context or call methods upon it   not an enclosing class error is thrown because of your usage of this keyword  this is a reference to the current object     the object whose method or constructor is being called  With this you can only refer to any member of the current object from within an instance method or a constructor    Katra home this is invalid construct

[java] Not an enclosing class error Android Studio

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