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Articles by Ankith Reddy
Page 52 of 73
How to add Internal Frame to a JDesktopPane in Java?
At first, create a JDesktoPane −JDesktopPane desktopPane = new JDesktopPane();Now, create an Internal frame and add it to the JDesktopPane −JInternalFrame intFrame = new JInternalFrame("Our Frame", true, true, true, true); desktopPane.add(intFrame); The following is an example to add Internal Frame to a JDesktopPane − package my; import java.awt.BorderLayout; import javax.swing.JButton; import javax.swing.JDesktopPane; import javax.swing.JFrame; import javax.swing.JInternalFrame; import javax.swing.JLabel; public class SwingDemo { public static void main(final String[] args) { JFrame frame = new JFrame(); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); JDesktopPane desktopPane = new JDesktopPane(); JInternalFrame intFrame = new JInternalFrame("Our Frame", true, ...
Read MoreHow to set TabLayout Policy to JTabbedPane in Java when all the tabs does not fit in a single run
To set TabLayout Policy to JTabbedPane in Java when all the tabs does not fit in a single run, use the method setTabLayoutPolicy() −JTabbedPane tabbedPane = new JTabbedPane(); tabbedPane.setTabLayoutPolicy(JTabbedPane.SCROLL_TAB_LAYOUT);Above we have set the constant to be SCROLL_TAB_LAYOUT, which is a tab layout policy for providing a subset of available tabs when all the tabs will not fit within a single run.The following is an example −package my; import javax.swing.*; import java.awt.*; import java.awt.event.KeyEvent; public class SwingDemo { public static void main(String args[]) { JFrame frame = new JFrame("Devices"); JTabbedPane tabbedPane = new JTabbedPane(); ...
Read MoreHow can I set scrollbars to never appear in Java?
To set scrollbars to never appear, use the JScrollPane.HORIZONTAL_SCROLLBAR_NEVER and JScrollPane.VERTICAL_SCROLLBAR_NEVER. Let’s say you created a Box with some button components. Now, create a JScrollPane:JScrollPane scrollPane = new JScrollPane();Set the Viewport view as Box:scrollPane.setViewportView(box);Now, set the scrollbars to never appear:scrollPane.setHorizontalScrollBarPolicy(JScrollPane.HORIZONTAL_SCROLLBAR_NEVER); scrollPane.setVerticalScrollBarPolicy(JScrollPane.VERTICAL_SCROLLBAR_NEVER);The following is an example to set scrollbars to never appear:Examplepackage my; import java.awt.BorderLayout; import java.awt.Dimension; import javax.swing.Box; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JScrollPane; public class SwingDemo { public static void main(String args[]) { JFrame frame = new JFrame("Demo"); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); JButton button1 = new JButton("One"); JButton button2 ...
Read MoreHow to limit text length of EditText in Android?
This example demonstrate about How to limit text length of EditText 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.javapackage app.tutorialspoint.com.sample ; import android.support.v7.app.AppCompatActivity ; import android.os.Bundle ; public class MainActivity extends AppCompatActivity { @Override protected void onCreate (Bundle savedInstanceState) { super .onCreate(savedInstanceState) ; setContentView(R.layout. activity_main ) ; } }Step 4 − Add ...
Read MoreHow to display a pdf document into an Android Webview?
This example demonstrate about How to lock the Android device programmatically.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/MainActivitypackage app.tutorialspoint.com.sample ; import android.os.Bundle ; import android.support.v7.app.AppCompatActivity ; import android.view.View ; import android.webkit.WebView ; public class MainActivity extends AppCompatActivity { @Override protected void onCreate (Bundle savedInstanceState) { super .onCreate(savedInstanceState) ; setContentView(R.layout. activity_main ) ; } ...
Read MoreHow to check Android Phone Model programmatically?
This example demonstrate about How to check Android Phone Model programmatically.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.javapackage app.tutorialspoint.com.sample ; import android.os.Build ; import android.support.v7.app.AppCompatActivity ; import android.os.Bundle ; import android.widget.TextView ; public class MainActivity extends AppCompatActivity { TextView textView ; @Override protected void onCreate (Bundle savedInstanceState) { super .onCreate(savedInstanceState) ; setContentView(R.layout. activity_main ...
Read MoreHow to get current foreground activity context in Android?
This example demonstrate about How to get current foreground activity context in AndroidStep 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 src/MyApp.javapackage app.tutorialspoint.com.sample ; import android.app.Activity ; import android.app.Application ; public class MyApp extends Application { private Activity mCurrentActivity = null; @Override public void onCreate () { super .onCreate() ; } public Activity getCurrentActivity () { return mCurrentActivity ; } public void setCurrentActivity ...
Read MoreHow can I validate EditText input in Android?
This example demonstrate about How can I validate EditText input 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.java Step 3 − Add the following code to src/ValidateFilter.javapackage app.tutorialspoint.com.sample ; import android.text.InputFilter ; import android.text.Spanned ; import android.util.Log ; import java.util.regex.Matcher ; import java.util.regex.Pattern ; public class ValidateFilter implements InputFilter { @Override public CharSequence filter (CharSequence source , int start , int end , Spanned dest , int ...
Read MoreFind size of text stored in a specific MySQL column?
You can use length() from MySQL to find the size of text stores in a specific column. Let us first create a tablemysql> create table DemoTable ( CustomerName longtext ); Query OK, 0 rows affected (0.67 sec)Insert records in the table using insert command −mysql> insert into DemoTable values('Robert'); Query OK, 1 row affected (0.14 sec)Display all records from the table using select statement −mysql> select *from DemoTable;This will produce the following output−+--------------+ | CustomerName | +--------------+ | Robert | +--------------+ 1 row in set (0.00 sec)Here is the query to find the size ...
Read MoreHow do I get the resource id of an image if I know its name in Android?
This example demonstrate about How do I get the resource id of an image if I know its name in AndroidStep 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.java Step 3 − Add the following code to src/MainActivity.javapackage app.tutorialspoint.com.sample ; import android.os.Bundle ; import android.support.v7.app.AppCompatActivity ; import android.util.Log ; import android.widget.TextView ; public class MainActivity extends AppCompatActivity { @Override protected void onCreate (Bundle savedInstanceState) { ...
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