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Write a program to create a simple calculator

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  *Program* MainActivity.java import android.os.Bundle; import android.view.View; import android.widget.EditText; import android.widget.TextView; import androidx.appcompat.app.AppCompatActivity; public class MainActivity extends AppCompatActivity {     EditText e1, e2;     TextView t1;     int num1, num2;     @Override     protected void onCreate(Bundle savedInstanceState) {         super.onCreate(savedInstanceState);         setContentView(R.layout. activity_main );     }     public boolean getNumbers() {                  e1 = (EditText) findViewById(R.id. num1 );                  e2 = (EditText) findViewByI...
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  *Program* MainActivity.java import androidx.appcompat.app.AppCompatActivity; import android.os.Bundle; import android.view.View; import android.widget.TextView; import android.widget.ToggleButton; public class MainActivity         extends AppCompatActivity {     ToggleButton togglebutton;     TextView textview;     @Override     protected void onCreate(Bundle b)     {         super.onCreate(b);         setContentView(R.layout. activity_main );         togglebutton = (ToggleButton)findViewById(R.id. toggleButton );         textview = (TextView)findViewById(R.id. textView );     }     public void onToggleClick(View view)     { ...
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Write a program to display all the subjects of sixth semester using Auto Complete Text View

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  *Program* MainActivity.java import androidx.appcompat.app.AppCompatActivity; import android.graphics.Color; import android.os.Bundle; import android.widget.ArrayAdapter; import android.widget.AutoCompleteTextView; public class MainActivity extends AppCompatActivity {     @Override     protected void onCreate(Bundle savedInstanceState) {         super.onCreate(savedInstanceState);         setContentView(R.layout. activity_main );         AutoCompleteTextView autoCompleteTextView = (AutoCompleteTextView)findViewById(R.id. autocompleteTextView );         String[] subjects = {"MAD" , "NIS", "WMN", "ETI", "MGT"};         ArrayAdapter<String> adapter = new ArrayAdapter<String>(this,android.R.layout. select_dialog_item , subjects);  ...
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Write a program to create a first display screen of any search engine using Auto Complete Text View

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  *Program* MainActivity.java import androidx.appcompat.app.AppCompatActivity; import android.graphics.Color; import android.os.Bundle; import android.widget.ArrayAdapter; import android.widget.AutoCompleteTextView; public class MainActivity extends AppCompatActivity {     @Override     protected void onCreate(Bundle savedInstanceState)     {         super.onCreate(savedInstanceState);         setContentView(R.layout. activity_main );                  AutoCompleteTextView autoCompleteTextView = (AutoCompleteTextView) findViewById(R.id. autocompleteTextView );                  String[] colors = { "Red", "Green", "Black", "Orange", "Blue", "Pink", "Blush", "Brown", "Yellow" };   ...
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  MainActivity.java import androidx.appcompat.app.AppCompatActivity; import android.os.Bundle; import android.view.View; import android.widget.Button; import android.widget.TextView; public class MainActivity extends AppCompatActivity {     @Override     protected void onCreate(Bundle savedInstanceState) {         super.onCreate(savedInstanceState);         setContentView(R.layout.activity_main);         Button button = (Button) findViewById(R.id.bt1);         TextView textView = (TextView) findViewById(R.id.t3);         TextView textView1 = (TextView)findViewById(R.id.t4);         TextView textView3 = (TextView)findViewById(R.id.t5);         button.setOnClickListener...
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Write a program to accept username and password from the end user using Text View and Edit Text.

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  *Program* MainActivity.java import androidx.appcompat.app.AppCompatActivity; import android.os.Bundle; import android.view.View; import android.widget.Button; import android.widget.TextView; public class MainActivity extends AppCompatActivity {     @Override     protected void onCreate(Bundle savedInstanceState) {         super.onCreate(savedInstanceState);         setContentView(R.layout. activity_main );         Button button = (Button) findViewById(R.id. bt1 );         TextView textView = (TextView) findViewById(R.id. t3 );         button.setOnClickListener(new View.OnClickListener() {             @Override             publ...
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