Importance of the parseBoolean Method in Java

raja
Updated on 01-Jul-2020 06:13:23

174 Views

The parseBoolean() method is an important method of a Boolean class. The parseBoolean() is a static method and can parse the String method argument into a Boolean object. The parseBoolean() method of Boolean class returns the boolean represented by the string argument.Syntaxpublic static boolean parseBoolean(String s)Exampleimport java.util.Scanner; public class ParseBooleanMethodTest {    public static void main(String[] args) {       System.out.print("Are you ready to play cricket(true/false)?");       Scanner scanner = new Scanner(System.in);       String str = scanner.nextLine();       scanner.close();       // Convert the user input into boolean       boolean answer ... Read More

Use SearchView in Android

Azhar
Updated on 01-Jul-2020 06:10:17

2K+ Views

This example demonstrates how do I use SearchView in android.Step 1 − Create a new project in Android Studio, go to File ⇒ New Project and fill all required details to create a new projectStep 2 − Add the following code to res/layout/activity_main.xml.         Step 3 − Add the following code to src/MainActivity.javaimport android.support.v7.app.AppCompatActivity; import android.os.Bundle; import android.widget.ArrayAdapter; import android.widget.ListView; import android.widget.SearchView; import android.widget.Toast; import java.util.ArrayList; public class MainActivity extends AppCompatActivity {    SearchView searchView;    ListView listView;    ArrayList list;    ArrayAdapter adapter;    @Override    protected void onCreate(Bundle savedInstanceState) {       super.onCreate(savedInstanceState); ... Read More

Use ViewFlipper in Android

Azhar
Updated on 01-Jul-2020 06:09:31

734 Views

This example demonstrates how do I use viewFlipper in android.Step 1 − Create a new project in Android Studio, go to File ⇒ New Project and fill all required details to create a new project.Step 2 − Add the following code to res/layout/activity_main.xml.                             Step 3 − Add the following code to src/MainActivity.javaimport android.support.v7.app.AppCompatActivity; import android.os.Bundle; import android.view.Gravity; import android.view.View; import android.widget.TextView; import android.widget.ViewFlipper; public class MainActivity extends AppCompatActivity {    private ViewFlipper viewFlipper;    @Override    protected void onCreate(Bundle savedInstanceState) {     ... Read More

Restart an Activity in Android

Azhar
Updated on 01-Jul-2020 06:08:07

3K+ Views

This example demonstrates how do I restart an Activity in android.Step 1 − Create a new project in Android Studio, go to File ⇒ New Project and fill all required details to create a new project.Step 2 − Add the following code to res/layout/activity_main.xml.         Step 3 − Add the following code to src/MainActivity.javaimport android.content.Intent; import android.support.v7.app.AppCompatActivity; import android.os.Bundle; import android.view.View; import android.widget.Button; import android.widget.TextView; import java.util.Random; public class MainActivity extends AppCompatActivity {    TextView textView;    Button button;    Random random = new Random();    @Override    protected void onCreate(Bundle savedInstanceState) {       ... Read More

Calculate Bitonicity of an Array

sudhir sharma
Updated on 01-Jul-2020 06:07:18

116 Views

The bitonicity of an array is defined using the following syntax −To find bitonicity of an array based on its elements is −Bitonicity = 0 , initially arr[0] i from 0 to n Bitonicity = Bitonicity+1 ; if arr[i] > arr[i-1] Bitonicity = Bitonicity-1 ; if arr[i] < arr[i-1] Bitonicity = Bitonicity ; if arr[i] = arr[i-1]ExampleThe code for finding the bitonicity of an array we have used a variable called bitonicity, that changes its based on the comparison of the current and previous elements of the array. The above logic updates the bitonicity of the array and final bitonicity ... Read More

Add Shadow on Text in Android

Azhar
Updated on 01-Jul-2020 06:05:41

285 Views

This example demonstrates how do I add shadow on a text in android.Step 1 − Create a new project in Android Studio, go to File ⇒ New Project and fill all required details to create a new project.Step 2 − Add the following code to res/layout/activity_main.xml.     Step 3 − Add the following code to src/MainActivity.javaimport android.graphics.Color; import android.support.v7.app.AppCompatActivity; import android.os.Bundle; import android.widget.TextView; public class MainActivity extends AppCompatActivity {    @Override    protected void onCreate(Bundle savedInstanceState) {       super.onCreate(savedInstanceState);       setContentView(R.layout.activity_main);       TextView textView = findViewById(R.id.textView);       textView.setTextColor(Color.MAGENTA);     ... Read More

Play Audio File from Assets Directory in Android

Azhar
Updated on 01-Jul-2020 06:03:41

3K+ Views

This example demonstrates how do I play audio file from the assets directory in android.Step 1 − Create a new project in Android Studio, go to File ⇒ New Project and fill all required details to create a new project.Step 2 − Add the following code to res/layout/activity_main.xml.     Step 3 − Create a asset folder, Right click on the project → New → Folder → Asset Folder.Copy and paste the audio file into the assets folder.Step 4 − Add the following code to src/MainActivity.javaimport android.content.res.AssetFileDescriptor; import android.media.MediaPlayer; import android.support.v7.app.AppCompatActivity; import android.os.Bundle; import android.view.View; import android.widget.Button; import android.widget.Toast; ... Read More

Use SearchView in Toolbar in Android

Azhar
Updated on 01-Jul-2020 06:00:38

2K+ Views

This example demonstrates how do I use searchView in Toolbar android.Step 1 − Create a new project in Android Studio, go to File⇒ New Project and fill all required details to create a new project.Step 2 − Add the following code to res/layout/activity_main.xml.             Step 3 − Add the following code to src/MainActivity.javaimport android.os.Bundle; import android.support.v7.app.AppCompatActivity; import android.support.v7.widget.SearchView; import android.support.v7.widget.Toolbar; import android.view.Menu; import android.view.MenuItem; import android.view.View; import android.widget.AdapterView; import android.widget.ArrayAdapter; import android.widget.ListView; import android.widget.TextView; import android.widget.Toast; public class MainActivity extends AppCompatActivity {    Toolbar toolbar;    ArrayAdapter adapter;    ListView listView;    TextView emptyView; ... Read More

HTML DOM Input File Upload Required Property

karthikeya Boyini
Updated on 30-Jun-2020 15:52:19

244 Views

The HTML DOM input FileUpload required property returns and modify the value of required attribute of a file upload input button in HTML.SyntaxFollowing is the syntax −1. Returning requiredobject.required2. Modifying requiredobject.required = true|falseExampleLet us see an example of HTML DOM input file upload required property − Live Demo HTML DOM file upload required Property    body{       text-align:center;    }    .btn{       display:block;       margin:1rem auto;       background-color:#db133a;       color:#fff;       border:1px solid #db133a;       padding:0.5rem;       border-radius:50px;       ... Read More

Ways to Split a String in JavaScript

vineeth.mariserla
Updated on 30-Jun-2020 15:51:27

419 Views

In javascript, we can split a string in 3 ways. One is an old way in which string.split() method is used and later on, ES6 has provided 2 more ways to split a string. In the first way spread operator is used and in the second way array.from() method is used. Let's discuss them in detail.String.split()syntaxstring.split();ExampleIn the following example, string.split() method is used to split the provided string to each individual character.Live Demo           const str = 'Tutorialspoint'       var d = str.split('')       document.write(d);     OutputT, u, t, o, r, i, ... Read More

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