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Before getting into an example, we should know what is Horizontal Scroll View. Horizontal Scrollview provides by android.widget.HorizontalScrollView class. It is used to scroll child views in a horizontal direction.This example demonstrates how to use horizontal Scroll view.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. ... Read More
This example demonstrate about How to show shaking / wobble view animation 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. In the above code, we have taken button to show shake animation for image view.Step 3 − Add the following code to src/MainActivity.javapackage com.example.andy.myapplication; import android.support.v7.app.AppCompatActivity; import android.os.Bundle; import android.view.View; import android.view.animation.Animation; import android.view.animation.AnimationUtils; import android.view.animation.ScaleAnimation; import android.view.animation.TranslateAnimation; import android.widget.Button; import android.widget.ImageView; import android.widget.LinearLayout; public class ... Read More
The most popular smartphone messaging app, WhatsApp has reportedly been found to be prone to hijacking. This is the worst because it could be done without unlocking or knowing target's device password, which is making hundreds of Millions of users vulnerable to, which is not just limited to hackers but can be done by non-technical people as well.The following trick allows anybody to get the control over your WhatsApp account, and they just need your phone number and a device for few seconds, even if it is locked, not a problem for attackers.Here is the trickThe process starts by setting ... Read More
The ftp_pwd() function returns the present working directory i.e. the current directory.Syntaxftw_pwd(con)Parameterscon − The FTP connectionReturnThe ftp_pwd() function returns TRUE on success or FALSE on failure.ExampleThe following is an example −
The method java.io.File.isFile() is used to check whether the given file is an existing file in Java. Similarly, the method java.io.File.isDirectory() is used to check whether the given file is a directory in Java. Both of these methods require no parameters.A program that demonstrates this is given as follows −Examplepublic class Demo { public static void main(String[] args) { try { File file = new File("demo1.txt"); file.createNewFile(); boolean fileFlag = file.isFile(); if (fileFlag) { ... Read More
To work with SimpleDateFormat class in Java, import the following package.import java.text.SimpleDateFormat;Now, set the format with SimpleDateFormat(“hh”) to display hour −Format f = new SimpleDateFormat("hh");Now, get the hour in a string −String strHour = f.format(new Date());The following is an example −Example Live Demoimport java.text.Format; import java.text.SimpleDateFormat; import java.util.Date; import java.util.Calendar; public class Demo { public static void main(String[] args) throws Exception { Calendar cal = Calendar.getInstance(); SimpleDateFormat simpleformat = new SimpleDateFormat("dd/MMMM/yyyy hh:mm:s"); System.out.println("Today's date = "+simpleformat.format(cal.getTime())); ... Read More
All the elements in a collection of objects can be traversed using the Enumeration interface. The method hasMoreElements( ) returns true if there are more elements to be enumerated and false if there are no more elements to be enumerated. The method nextElement( ) returns the next object in the enumeration.A program that demonstrates this is given as follows −Example Live Demoimport java.util.Enumeration; import java.util.Vector; public class Demo { public static void main(String args[]) throws Exception { Vector vec = new Vector(); vec.add("John"); ... Read More
In this program we will see how to convert BCD numbers to binary equivalent.Problem StatementA BCD number is stored at location 802BH. Convert the number into its binary equivalent andstore it to the memory location 802CH.DiscussionIn this problem we are taking a BCD number from the memory and converting it to its binaryequivalent. At first we are cutting each nibble of the input. So ifthe input is 52 (0101 0010) then we can simply cut it by masking the number by 0FH and F0H. When the Higher order nibble is cut, thenrotate it to the left four times to transfer ... Read More
To work with SimpleDateFormat class in Java, import the following package.import java.text.SimpleDateFormat;Now, set the format with SimpleDateFormat(“s”) to display seconds in one-digit.Format f = new SimpleDateFormat(”s”);Now, get the seconds in a string.String strSeconds = f.format(new Date());The following is an example −Example Live Demoimport java.text.Format; import java.text.SimpleDateFormat; import java.util.Date; import java.util.Calendar; public class Demo { public static void main(String[] args) throws Exception { // displaying current date and time Calendar cal = Calendar.getInstance(); SimpleDateFormat simpleformat = new SimpleDateFormat("dd/MMMM/yyyy hh:mm:s"); ... Read More
Every DMA channel consists an address register and a count register. These registers are 16-bits wide in length. In each 16 bits there are four ARs marked as AR3-0. Apart from four CRs there are control and status registers also. They are separate 8-bit registers, but have the same address. Here the processor can only write in the control register but we can read in the status register. Fig. Programmer's view at a glance of Intel 8257.We can select any one of the above registers by the address of the four pins marked as A3-0 of 8257. The processor used here writes to ... Read More