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Articles on Trending Technologies
Technical articles with clear explanations and examples
How to create transparent Status Bar and Navigation Bar in iOS?
You might have come across many application where the screen extends to complete screen i.e transparent Status Bar and transparent navigation bar.Here we will be seeing how to create an application where the you’ll be having transparent status and navigation bar.So let’s get startedStep 1 − Open Xcode → New Project → Single View Application → Let’s name it “TransparentViews”Step 2 − Embed the View Controller in Navigation Controller. Add Image View and shown and add image.Step 3 − Run the application without adding any piece of code for making status and navigation bar transparent.The screen looks like belowStep 4 ...
Read MoreCount rows having three or more rows with a certain value in a MySQL table
Let us first create a table −mysql> create table DemoTable -> ( -> UserId int -> ); Query OK, 0 rows affected (0.48 sec)Insert some records in the table using insert command −mysql> insert into DemoTable values(10); Query OK, 1 row affected (0.15 sec) mysql> insert into DemoTable values(20); Query OK, 1 row affected (0.12 sec) mysql> insert into DemoTable values(30); Query OK, 1 row affected (0.15 sec) mysql> insert into DemoTable values(10); Query OK, 1 row affected (0.14 sec) mysql> insert into DemoTable values(10); Query OK, 1 row affected (0.09 sec) ...
Read MoreC++ Program for Sum of squares of first n natural numbers?
In this problem we will see how we can get the sum of squares of first n natural numbers. Here we are using one for loop, that runs from 1 to n. In each step we are calculating square of the term and then add it to the sum. This program takes O(n) time to complete. But if we want to solve this in O(1) or constant time, we can use this series formula −AlgorithmsquareNNatural(n)begin sum := 0 for i in range 1 to n, do sum := sum + i^2 done return ...
Read MoreC++ Program to Implement Levenshtein Distance Computing Algorithm
The Levenshtein distance between two strings means the minimum number of edits needed to transform one string into the other, with the edit operations i.e; insertion, deletion, or substitution of a single character.For example: The Levenshtein Distance between cat and mat is 1 −cat mat(substitution of ‘c’ with ‘m’)Here is a C++ Program to implement Levenshtein Distance computing algorithm.AlgorithmsBegin Take the strings as input and also find their length. For i = 0 to l1 dist[0][i] = i For j = 0 to l2 dist[j][0] = j For j=1 to l1 ...
Read MoreHow to clear an Android notification after a few seconds?
This example demonstrate about How to clear an Android notification after a few seconds.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.notifyme ; import android.app.NotificationChannel ; import android.app.NotificationManager ; import android.app.PendingIntent ; import android.content.Context ; import android.content.Intent ; import android.os.Handler ; import android.support.v4.app.NotificationCompat ; import android.support.v7.app.AppCompatActivity ; import android.os.Bundle ; import android.view.View ; import android.widget.Button ; public class MainActivity extends AppCompatActivity { ...
Read MoreI want to resize and position a JFrame in Java. How can I achieve that?
To resize and position JFrame, use the Dimensions class. Here, we have set the bounds for the frame −int width = 500; int height = 400; Dimension size = Toolkit.getDefaultToolkit().getScreenSize(); frame.setBounds((int) size.getWidth() - width, 0, width, height);The following is an example to resize and poisiton a frame −Examplepackage my; import java.awt.Dimension; import java.awt.GridLayout; import java.awt.Toolkit; import javax.swing.JFrame; import javax.swing.JLabel; import javax.swing.JPasswordField; import javax.swing.JTextField; import javax.swing.SwingConstants; public class SwingDemo { public static void main(String[] args) throws Exception { JFrame.setDefaultLookAndFeelDecorated(true); JFrame frame = new JFrame("Register!"); JLabel label1, label2, label3; ...
Read MoreHow to answer incoming call programmatically in iOS?
Apple iPhone SDK doesn’t allow this feature. If you really wish to achieve it you can use some private api such as CTCallAnswer(call);This will result in your app store rejection.
Read MoreHow to use clock() function in C++
Here we will see how to use the clock() in C++. This clock() is present in the time.h or ctime header file. Here we will find the elapsed time of a process using this clock() functionTo get the elapsed time, we can get the time using clock() at the beginning, and at the end of the taks, then subtract the values to get the differences. After that we will divide the difference by CLOCK_PER_SEC (Number of clock ticks per second) to get the processor time.Example#include #include using namespace std; void take_enter() { cout
Read MoreC++ Program to Implement Caesar Cypher
It is a mono-alphabetic cipher wherein each letter of the plaintext is substituted by another letter to form the ciphertext. It is a simplest form of substitution cipher scheme.This cryptosystem is generally referred to as the Shift Cipher. The concept is to replace each alphabet by another alphabet which is ‘shifted’ by some fixed number between 0 and 25.For this type of scheme, both sender and receiver agree on a ‘secret shift number’ for shifting the alphabet. This number which is between 0 and 25 becomes the key of encryption.The name ‘Caesar Cipher’ is occasionally used to describe the Shift ...
Read MoreHow to remove the notification after the particular time in android?
This example demonstrate about How to remove the notification after the particular time 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.xml. Step 3 − Add the following code to src/MainActivity.javapackage app.tutorialspoint.com.notifyme ; import android.app.NotificationChannel ; import android.app.NotificationManager ; import android.app.PendingIntent ; import android.content.Context ; import android.content.Intent ; import android.os.Handler ; import android.support.v4.app.NotificationCompat ; import android.support.v7.app.AppCompatActivity ; import android.os.Bundle ; import android.view.View ; import android.widget.Button ; public class MainActivity extends AppCompatActivity ...
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