//////////////////////////////////////////////////////////////////////////////////////////////////
**JAVA CLASSES**
------------------------------------------------------------
**DBHelper**

import android.content.ContentValues;
import android.content.Context;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteOpenHelper;
import android.util.Log;

import java.util.ArrayList;

/**
 * Created by Suraj on 10/6/2018.
 */

public class DBHandler extends SQLiteOpenHelper {

    public DBHandler(Context context) {
        super(context, "user_db", null, 1);

    }

    @Override
    public void onCreate(SQLiteDatabase db) {

        String createQuery = "CREATE TABLE "+UserProfile.Users.TABLE_NAME +"( "+UserProfile.Users.COL_ID +" INTEGER PRIMARY KEY AUTOINCREMENT ,"+UserProfile.Users.COL_USERNAME+" TEXT UNIQUE," +
                UserProfile.Users.COL_PASSWORD +" TEXT, "+UserProfile.Users.COL_GENDER +" TEXT, "+UserProfile.Users.COL_DOB +" TEXT"+")";

        Log.d("createQuery",createQuery);

        try {
            db.execSQL(createQuery);
        }
        catch (Exception e){
            e.printStackTrace();
            Log.e("Exception",e.getMessage());
        }

    }

    @Override
    public void onUpgrade(SQLiteDatabase db, int i, int i1) {

        String createQuery = "CREATE TABLE "+UserProfile.Users.TABLE_NAME +"( "+UserProfile.Users.COL_ID +" INTEGER PRIMARY KEY AUTOINCREMENT ,"+UserProfile.Users.COL_USERNAME+" TEXT," +
                UserProfile.Users.COL_PASSWORD +" TEXT, "+UserProfile.Users.COL_GENDER +" TEXT, "+UserProfile.Users.COL_DOB+" TEXT"+")";

        Log.d("createQuery",createQuery);

        try {
            db.execSQL(createQuery);
        }
        catch (Exception e){
            e.printStackTrace();
            Log.e("Exception",e.getMessage());
        }


    }

    public boolean addInfo(UserProfile.Users users){

        SQLiteDatabase db = this.getWritableDatabase();

        String insertQuery = "INSERT INTO "+UserProfile.Users.TABLE_NAME+"("+UserProfile.Users.COL_USERNAME+","+UserProfile.Users.COL_PASSWORD+","+UserProfile.Users.COL_GENDER+","+
                UserProfile.Users.COL_DOB+") VALUES('"+users.getUsername()+"','"+users.getPassword()+"','"+users.getGender()+"','"+users.getDob()+"')";

        Log.d("insertQuery",insertQuery);

        try {
            db.execSQL(insertQuery);
            return true;
        }
        catch (Exception e){
             e.printStackTrace();
             Log.d("Exception",e.getMessage());
        }

        db.close();
        return false;
    }

    public boolean updateInfor(UserProfile.Users users){

        SQLiteDatabase db = this.getWritableDatabase();

        ContentValues values = new ContentValues();

        String username = users.getUsername();
        String password = users.getPassword();
        String dob = users.getDob();
        String gender = users.getGender();
        int id = users.getId();
        values.put(UserProfile.Users.COL_DOB,dob);
        values.put(UserProfile.Users.COL_GENDER,gender);
        values.put(UserProfile.Users.COL_PASSWORD,password);
        values.put(UserProfile.Users.COL_USERNAME,username);

        int result = db.update(UserProfile.Users.TABLE_NAME,values,UserProfile.Users.COL_ID+" = ?",new String[]{String.valueOf(id)});

        if(result >0)
            return true;

        return false;
    }


    public ArrayList<UserProfile.Users> readAllInfor(){

        ArrayList<UserProfile.Users> userList = new ArrayList<>();

        SQLiteDatabase db = this.getWritableDatabase();

        String readAllQuery = "SELECT * FROM "+UserProfile.Users.TABLE_NAME;

        Cursor cursor = db.rawQuery(readAllQuery,null);

        if(cursor.moveToFirst()){
            do{
                UserProfile.Users users = UserProfile.getProfile().getUser();

                users.setId(Integer.parseInt(cursor.getString(0)));
                users.setUsername(cursor.getString(1));
                users.setPassword(cursor.getString(2));
                users.setGender(cursor.getString(3));
                users.setDob(cursor.getString(4));

                userList.add(users);

            }while (cursor.moveToNext());
        }

        return userList;

    }

    public UserProfile.Users readAllInfor(String userName){

        SQLiteDatabase db = this.getWritableDatabase();

        String readSingleQuery = "SELECT * FROM "+ UserProfile.Users.TABLE_NAME+" WHERE "+ UserProfile.Users.COL_USERNAME + " =  '"+ userName+"'";

        Cursor cursor = db.rawQuery(readSingleQuery,null);

        if(cursor.moveToFirst()){

            UserProfile.Users users = UserProfile.getProfile().getUser();

            users.setId(Integer.parseInt(cursor.getString(0)));
            users.setUsername(cursor.getString(1));
            users.setPassword(cursor.getString(2));
            users.setGender(cursor.getString(3));
            users.setDob(cursor.getString(4));

            return users;
        }

       return null;
    }

    public UserProfile.Users readAllInfor(int id){

        SQLiteDatabase db = this.getWritableDatabase();

        String readSingleQuery = "SELECT * FROM "+ UserProfile.Users.TABLE_NAME+" WHERE "+ UserProfile.Users.COL_ID + " =  '"+ id+"'";

        Cursor cursor = db.rawQuery(readSingleQuery,null);

        if(cursor.moveToFirst()){

            UserProfile.Users users = UserProfile.getProfile().getUser();

            users.setId(Integer.parseInt(cursor.getString(0)));
            users.setUsername(cursor.getString(1));
            users.setPassword(cursor.getString(2));
            users.setGender(cursor.getString(3));
            users.setDob(cursor.getString(4));

            return users;
        }

        return null;
    }



    public void deleteInfo(String username){

        SQLiteDatabase db = this.getWritableDatabase();

        String deleteQuery = "DELETE FROM "+ UserProfile.Users.TABLE_NAME+" WHERE "+ UserProfile.Users.COL_USERNAME +" = '"+ username +"' ";
        Log.d("deleteQuery ",deleteQuery);
        db.execSQL(deleteQuery);
        db.close();
    }



}
------------------------------------------------------------------------------------------------------
**UserProfile**

public final class UserProfile {

    private UserProfile(){

    }

    public static UserProfile getProfile(){

        UserProfile userProfile = new UserProfile();
        return userProfile;
    }
    class Users implements BaseColumn{

        public static final String TABLE_NAME = "UserInfo";
        public static final String COL_ID = "_ID";
        public static final String COL_USERNAME  = "userName ";
        public static final String COL_DOB = "dateOfBirth";
        public static final String COL_GENDER = "Gender";
        public static final String COL_PASSWORD = "Password";


        //display karana ona variable tika
        private int id;
        private String username;
        private String dob;
        private String gender;
        private String password;


        public int getId() {
            return id;
        }

        public void setId(int id) {
            this.id = id;
        }

        public String getUsername() {
            return username;
        }

        public void setUsername(String username) {
            this.username = username;
        }

        public String getDob() {
            return dob;
        }

        public void setDob(String dob) {
            this.dob = dob;
        }

        public String getGender() {
            return gender;
        }

        public void setGender(String gender) {
            this.gender = gender;
        }

        public String getPassword() {
            return password;
        }

        public void setPassword(String password) {
            this.password = password;
        }
    }
        //hethuwa-wena thanaka class ekaka wena wenama varible cll krnnaq ona unoth
    public Users getUser(){
        Users users = new Users();

        return users;
    }



}

----------------------------------------------------------------------------------------------------------------
**EditProfile**

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.RadioButton;
import android.widget.RadioGroup;
import android.widget.Toast;

public class EditProfile extends AppCompatActivity {

    Button searchBtn;
    EditText userName_editText;
    EditText password_editText;
    EditText dob_editText;
    RadioGroup genderRadioGroup;
    RadioButton genderRadioBtn;

    //new Edit
    RadioButton genderRadioBtnMale;
    RadioButton genderRadioBtnFemale;

    Button editBtn;
    Button deleteBtn;
    Intent intent;
    DBHandler dbHandler;

    public static final String USERID_EDITPROFILE = "userID";

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_edit_profile);

        searchBtn = (Button)findViewById(R.id.editprof_searchbtn);
        userName_editText = (EditText)findViewById(R.id.editprof_userName);
        password_editText = (EditText)findViewById(R.id.editprof_password);
        dob_editText = (EditText)findViewById(R.id.editprof_dob);
        genderRadioGroup = (RadioGroup)findViewById(R.id.editprof_radiogroup);
        editBtn = (Button)findViewById(R.id.editprof_editbtn);
        deleteBtn = (Button)findViewById(R.id.editprof_deletebtn);


        //new edit
        genderRadioBtnMale = (RadioButton) findViewById(R.id.editprof_male_radio);
        genderRadioBtnFemale = (RadioButton) findViewById(R.id.editprof_female_radio);

        intent = getIntent();


        dbHandler = new DBHandler(EditProfile.this);

        setUserDetails();

        deleteBtn.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                String username = userName_editText.getText().toString();

                if(username == null){
                    Toast.makeText(EditProfile.this,"Please enter username to delete your profile",Toast.LENGTH_SHORT).show();
                }
                else{
                    UserProfile.Users users = dbHandler.readAllInfor(username);

                    if(users == null){
                        Toast.makeText(EditProfile.this,"No profile found from this username, please enter valid username",Toast.LENGTH_SHORT).show();
                    }
                    else{
                        dbHandler.deleteInfo(username);
                        Intent redirectintent_home = new Intent(EditProfile.this,Home.class);
                        startActivity(redirectintent_home);
                    }
                }
            }
        });

        editBtn.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {

                String userID_String = intent.getStringExtra(Home.USERID);
                if(userID_String == null){
                    Toast.makeText(EditProfile.this,"Error!!",Toast.LENGTH_SHORT).show();
                    Intent redirectintent_home =  new Intent(getApplicationContext(),Home.class);
                    startActivity(redirectintent_home);
                }
                int userID = Integer.parseInt(userID_String);

                String username = userName_editText.getText().toString();
                String password = password_editText.getText().toString();
                String dob = dob_editText.getText().toString();
                int selectedGender = genderRadioGroup.getCheckedRadioButtonId();
                genderRadioBtn = (RadioButton)findViewById(selectedGender);
                String gender = genderRadioBtn.getText().toString();

                UserProfile.Users users = UserProfile.getProfile().getUser();
                users.setUsername(username);
                users.setPassword(password);
                users.setDob(dob);
                users.setGender(gender);
                users.setId(userID);

                dbHandler.updateInfor(users);
                Toast.makeText(EditProfile.this,"Updated Successfully",Toast.LENGTH_SHORT).show();
                Intent redirectintent_home = new Intent(getApplicationContext(),Home.class);
                startActivity(redirectintent_home);
            }
        });

        searchBtn.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
               String username = userName_editText.getText().toString();
               if (username == null){
                   Toast.makeText(EditProfile.this,"Please enter a username",Toast.LENGTH_SHORT).show();
               }
               else{
                   UserProfile.Users users_search = dbHandler.readAllInfor(username);


                   if(users_search == null){
                       Toast.makeText(EditProfile.this,"Please enter a valid username",Toast.LENGTH_SHORT).show();
                   }
                   else{
                       userName_editText.setText(users_search.getUsername());
                       password_editText.setText(users_search.getPassword());
                       dob_editText.setText(users_search.getDob());
                       int id = users_search.getId();
                       Intent redirectintent = new Intent(EditProfile.this,EditProfile.class);
                       redirectintent.putExtra(USERID_EDITPROFILE,Integer.toString(id));
                       startActivity(redirectintent);
                   }
               }
            }
        });


    }

    public void setUserDetails(){

        String userID_String = intent.getStringExtra(Home.USERID);
        if(userID_String == null){
            Toast.makeText(EditProfile.this,"Error!!",Toast.LENGTH_SHORT).show();
            Intent redirectintent_home = new Intent(EditProfile.this,Home.class);
            startActivity(redirectintent_home);
        }
        int userID = Integer.parseInt(userID_String);
        UserProfile.Users users = dbHandler.readAllInfor(userID);
        userName_editText.setText(users.getUsername());
        password_editText.setText(users.getPassword());
        dob_editText.setText(users.getDob());

        //new edit
        String gender = users.getGender();
        if(gender.equals("Male")){
            genderRadioBtnMale.setChecked(true);
            genderRadioBtnFemale.setChecked(false);
        }
        else{
            genderRadioBtnMale.setChecked(false);
            genderRadioBtnFemale.setChecked(true);
        }
    }
}

---------------------------------------------------------------------------------------------------------------
**Home**


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 Home extends AppCompatActivity {


    EditText username_editText;
    EditText password_editText;
    Button loginbtn;
    Button registerbtn;

    public static final String USERID = "userID";

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_home);

        username_editText = (EditText)findViewById(R.id.home_userName);
        password_editText = (EditText)findViewById(R.id.home_password);
        loginbtn = (Button)findViewById(R.id.home_loginBtn);
        registerbtn = (Button)findViewById(R.id.home_registerBtn);
        final DBHandler dbHandler = new DBHandler(Home.this);

        registerbtn.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {

                    Intent intent = new Intent(Home.this,ProfileManagement.class);
                    startActivity(intent);
            }
        });

        loginbtn.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                String userName = username_editText.getText().toString();
                String password = password_editText.getText().toString();

               if(userName.equals("") || password.equals("")){
                   Toast.makeText(Home.this,"Login Unsuccessful",Toast.LENGTH_SHORT).show();
               }
               else{
                   UserProfile.Users users = dbHandler.readAllInfor(userName);

                   if(users == null){
                       Toast.makeText(Home.this,"Invalid username or password",Toast.LENGTH_SHORT).show();
                   }

                   else{
                       int userID = users.getId();
                       Intent editProfIntent = new Intent(Home.this,EditProfile.class);
                       editProfIntent.putExtra(USERID,Integer.toString(userID));
                       startActivity(editProfIntent);

                   }
               }
            }
        });
    }
}


----------------------------------------------------------------------------------------------------------------------
**ProfileManagement**

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.RadioButton;
import android.widget.RadioGroup;
import android.widget.Toast;

public class ProfileManagement extends AppCompatActivity {

    EditText username_editText;
    EditText password_editText;
    EditText dob_editText;
    RadioGroup radioGroup;
    RadioButton gender_radioBtn;
    Button saveProfBtn;

    public final static String USERID_PROFILEMGMT = "userID";

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_profile_management);

        username_editText = (EditText)findViewById(R.id.profmgmt_userName);
        password_editText = (EditText)findViewById(R.id.profmgmt_password);
        dob_editText = (EditText)findViewById(R.id.profmgmt_dob);
        radioGroup = (RadioGroup)findViewById(R.id.profmgmt_radiogroup);
        saveProfBtn = (Button)findViewById(R.id.profmgmt_btn);
        final DBHandler dbHandler = new DBHandler(ProfileManagement.this);

        saveProfBtn.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {

                String username = username_editText.getText().toString();
                String password = password_editText.getText().toString();
                String dob = dob_editText.getText().toString();
                int selectedGender = radioGroup.getCheckedRadioButtonId();
                gender_radioBtn = (RadioButton)findViewById(selectedGender);
                String gender = gender_radioBtn.getText().toString();

                UserProfile.Users users = UserProfile.getProfile().getUser();
                users.setUsername(username);
                users.setPassword(password);
                users.setDob(dob);
                users.setGender(gender);
                boolean result = dbHandler.addInfo(users);

                if(result ==  true){
                    Toast.makeText(ProfileManagement.this,"Successfully added",Toast.LENGTH_SHORT).show();
                    UserProfile.Users newusers = dbHandler.readAllInfor(username);
                    int userID = newusers.getId();
                    Intent intent = new Intent(ProfileManagement.this,EditProfile.class);
                    intent.putExtra(USERID_PROFILEMGMT,Integer.toString(userID));
                    startActivity(intent);
                }

            }
        });

    }
}


///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
**XML**
------------------------------------------------------------------------
**activity edit profile**

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context="com.modelpaper.mad.it17121002.EditProfile">

    <TextView
        android:id="@+id/textView2"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignLeft="@+id/textView"
        android:layout_alignStart="@+id/textView"
        android:layout_below="@+id/textView"
        android:layout_marginTop="45dp"
        android:text="Date Of Birth "
        android:textSize="24sp" />

    <TextView
        android:id="@+id/textView"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentTop="true"
        android:layout_marginTop="72dp"
        android:layout_toLeftOf="@+id/profmgmt_btn"
        android:layout_toStartOf="@+id/profmgmt_btn"
        android:text="User Name"
        android:textSize="24sp" />

    <TextView
        android:id="@+id/textView3"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignLeft="@+id/textView4"
        android:layout_alignStart="@+id/textView4"
        android:layout_below="@+id/textView4"
        android:layout_marginTop="41dp"
        android:text="Gender"
        android:textSize="24sp" />

    <TextView
        android:id="@+id/textView4"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignLeft="@+id/textView2"
        android:layout_alignStart="@+id/textView2"
        android:layout_below="@+id/textView2"
        android:layout_marginTop="46dp"
        android:text="Password"
        android:textSize="24sp" />

    <Button
        android:id="@+id/editprof_editbtn"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentBottom="true"
        android:layout_alignParentLeft="true"
        android:layout_alignParentStart="true"
        android:layout_marginBottom="54dp"
        android:layout_marginLeft="39dp"
        android:layout_marginStart="39dp"
        android:text="Edit" />

    <EditText
        android:id="@+id/editprof_userName"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignTop="@+id/textView"
        android:layout_toEndOf="@+id/textView2"
        android:layout_toRightOf="@+id/textView2"
        android:ems="10"
        android:inputType="textPersonName" />

    <EditText
        android:id="@+id/editprof_dob"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignBottom="@+id/textView2"
        android:layout_toEndOf="@+id/textView2"
        android:layout_toRightOf="@+id/textView2"
        android:ems="10"
        android:inputType="textPersonName" />

    <EditText
        android:id="@+id/editprof_password"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignBottom="@+id/textView4"
        android:layout_alignLeft="@+id/editprof_dob"
        android:layout_alignStart="@+id/editprof_dob"
        android:ems="10"
        android:inputType="textPersonName" />

    <RadioGroup
        android:id="@+id/editprof_radiogroup"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignLeft="@+id/profmgmt_password"
        android:layout_alignStart="@+id/profmgmt_password"
        android:layout_alignTop="@+id/textView3"
        android:layout_marginLeft="150dp">

        <RadioButton
            android:id="@+id/editprof_male_radio"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:text="Male"
            android:textSize="24sp" />

        <RadioButton
            android:id="@+id/editprof_female_radio"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginLeft="100dp"
            android:layout_weight="1"
            android:text="Female"
            android:textSize="24sp" />
    </RadioGroup>

    <Button
        android:id="@+id/editprof_deletebtn"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignBaseline="@+id/editprof_editbtn"
        android:layout_alignBottom="@+id/editprof_editbtn"
        android:layout_marginEnd="14dp"
        android:layout_marginRight="14dp"
        android:layout_toLeftOf="@+id/editprof_searchbtn"
        android:layout_toStartOf="@+id/editprof_searchbtn"
        android:text="Delete" />

    <Button
        android:id="@+id/editprof_searchbtn"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_above="@+id/editprof_userName"
        android:layout_alignParentEnd="true"
        android:layout_alignParentRight="true"
        android:layout_marginBottom="11dp"
        android:text="Search" />
</RelativeLayout>

-----------------------------------------------------------------------------------------------------
**activity home profile**

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context="com.modelpaper.mad.it17121002.Home">

    <TextView
        android:id="@+id/userName_text"
        android:layout_width="wrap_content"
        android:layout_height="40dp"
        android:layout_alignParentLeft="true"
        android:layout_alignParentStart="true"
        android:layout_alignParentTop="true"
        android:layout_marginLeft="14dp"
        android:layout_marginStart="14dp"
        android:layout_marginTop="71dp"
        android:text="User Name"
        android:textSize="24sp" />

    <TextView
        android:id="@+id/userName_text2"
        android:layout_width="wrap_content"
        android:layout_height="40dp"
        android:layout_alignLeft="@+id/userName_text"
        android:layout_alignStart="@+id/userName_text"
        android:layout_below="@+id/userName_text"
        android:layout_marginTop="49dp"
        android:text="Password"
        android:textSize="24sp" />

    <EditText
        android:id="@+id/home_userName"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentEnd="true"
        android:layout_alignParentRight="true"
        android:layout_alignTop="@+id/userName_text"
        android:layout_marginEnd="17dp"
        android:layout_marginRight="17dp"
        android:ems="10"
        android:inputType="textPersonName" />

    <EditText
        android:id="@+id/home_password"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignBottom="@+id/userName_text2"
        android:layout_alignEnd="@+id/home_userName"
        android:layout_alignRight="@+id/home_userName"
        android:ems="10"
        android:inputType="textPersonName" />

    <Button
        android:id="@+id/home_loginBtn"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_below="@+id/home_password"
        android:layout_marginTop="97dp"
        android:layout_toLeftOf="@+id/home_password"
        android:layout_toStartOf="@+id/home_password"
        android:text="Login" />

    <Button
        android:id="@+id/home_registerBtn"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignBaseline="@+id/home_loginBtn"
        android:layout_alignBottom="@+id/home_loginBtn"
        android:layout_alignEnd="@+id/home_password"
        android:layout_alignRight="@+id/home_password"
        android:layout_marginEnd="39dp"
        android:layout_marginRight="39dp"
        android:text="Register" />
</RelativeLayout>


-----------------------------------------------------------------------------------------------
**activiity_profile_management**
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context="com.modelpaper.mad.it17121002.ProfileManagement">

    <TextView
        android:id="@+id/textView2"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignLeft="@+id/textView"
        android:layout_alignStart="@+id/textView"
        android:layout_below="@+id/textView"
        android:layout_marginTop="45dp"
        android:text="Date Of Birth "
        android:textSize="24sp" />

    <TextView
        android:id="@+id/textView"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentTop="true"
        android:layout_marginTop="72dp"
        android:layout_toLeftOf="@+id/profmgmt_btn"
        android:layout_toStartOf="@+id/profmgmt_btn"
        android:text="User Name"
        android:textSize="24sp" />

    <TextView
        android:id="@+id/textView3"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignLeft="@+id/textView4"
        android:layout_alignStart="@+id/textView4"
        android:layout_below="@+id/textView4"
        android:layout_marginTop="41dp"
        android:text="Gender"
        android:textSize="24sp" />

    <TextView
        android:id="@+id/textView4"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignLeft="@+id/textView2"
        android:layout_alignStart="@+id/textView2"
        android:layout_below="@+id/textView2"
        android:layout_marginTop="46dp"
        android:text="Password"
        android:textSize="24sp" />

    <Button
        android:id="@+id/profmgmt_btn"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentBottom="true"
        android:layout_centerHorizontal="true"
        android:layout_marginBottom="56dp"
        android:text="Register" />

    <EditText
        android:id="@+id/profmgmt_userName"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignTop="@+id/textView"
        android:layout_toEndOf="@+id/textView2"
        android:layout_toRightOf="@+id/textView2"
        android:ems="10"
        android:inputType="textPersonName" />

    <EditText
        android:id="@+id/profmgmt_dob"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignBottom="@+id/textView2"
        android:layout_toEndOf="@+id/textView2"
        android:layout_toRightOf="@+id/textView2"
        android:ems="10"
        android:inputType="textPersonName" />

    <EditText
        android:id="@+id/profmgmt_password"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignBottom="@+id/textView4"
        android:layout_alignEnd="@+id/profmgmt_dob"
        android:layout_alignRight="@+id/profmgmt_dob"
        android:ems="10"
        android:inputType="textPersonName" />


    <RadioGroup
        android:id="@+id/profmgmt_radiogroup"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignLeft="@+id/profmgmt_password"
        android:layout_alignStart="@+id/profmgmt_password"
        android:layout_alignTop="@+id/textView3">

        <RadioButton
            android:id="@+id/profmgmt_male_radio"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:text="Male"
            android:textSize="24sp" />

        <RadioButton
            android:id="@+id/profmgmt_female_radio"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginLeft="100dp"
            android:layout_weight="1"
            android:text="Female"
            android:textSize="24sp" />
    </RadioGroup>

</RelativeLayout>
------------------------------------------------------------------------------------------------