Article Categories
- All Categories
-
Data Structure
-
Networking
-
RDBMS
-
Operating System
-
Java
-
MS Excel
-
iOS
-
HTML
-
CSS
-
Android
-
Python
-
C Programming
-
C++
-
C#
-
MongoDB
-
MySQL
-
Javascript
-
PHP
-
Economics & Finance
Articles on Trending Technologies
Technical articles with clear explanations and examples
How to Go back to previous activity in android
If you wants to go back from one activity to another activity, This example demonstrate about how to go back to previous 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. In the above code, we have given text view, when the user click on text view, it will open new activity.Step 3 − Add the following code to src/MainActivity.javapackage com.example.andy.myapplication; import android.content.Intent; import android.os.Bundle; import android.support.v7.app.AppCompatActivity; import android.view.View; import ...
Read MoreSending and Receiving Data with Sockets in android
This example demonstrate about Sending and Receiving Data with Sockets in androidNeed Server and Client ProjectServerStep 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 com.server.myapplication.server; import android.annotation.SuppressLint; import android.net.wifi.WifiInfo; import android.net.wifi.WifiManager; import android.os.Bundle; import android.support.v7.app.AppCompatActivity; import android.view.View; import android.widget.Button; import android.widget.EditText; import android.widget.TextView; import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; import java.io.PrintWriter; import java.net.InetAddress; ...
Read MoreWhat is the easiest way to store date in MySQL database?
To store date in MySQL, use the STR_TO_DATE() method −insert into yourTableName values(STR_TO_DATE('yourDate', '%d/%m/%Y'));Let us first create a table −mysql> create table DemoTable ( AdmissionDate date ); Query OK, 0 rows affected (0.62 sec)Insert records in the table using insert command −mysql> insert into DemoTable values(STR_TO_DATE('10/01/2013', '%d/%m/%Y')); Query OK, 1 row affected (0.21 sec) mysql> insert into DemoTable values(STR_TO_DATE('31/01/2015', '%d/%m/%Y')); Query OK, 1 row affected (0.17 sec) mysql> insert into DemoTable values(STR_TO_DATE('23/04/2019', '%d/%m/%Y')); Query OK, 1 row affected (0.22 sec) mysql> insert into DemoTable values(STR_TO_DATE('01/03/2019', '%d/%m/%Y')); Query OK, 1 row affected (0.48 sec)Display records from the table using select ...
Read MoreProgram for simulation of throwing a die in 8085 Microprocessor
Write an 8085 assembly language program to simulate the throw of a die using an interrupt.We have a counter for this program, which counts the ranges from 1 to 6, and again repeats the sequence of count in a matter which is endless in an infinite loop. The die throwing getting the head and tail probability gets simulated by pressing the key ‘Vect Intr’ on the keyboard. The branching of 8085 branches to RST7.5 ISS. Here, the current value of the counter gets is displayed in the data field, which controls and returns to the main program for the continuation ...
Read MoreHow to get top activity name in activity stack?
This example demonstrate about How to get top activity name in activity stack.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 text view to show top activity name.Step 3 − Add the following code to src/MainActivity.javapackage com.example.myapplication; import android.app.ActivityManager; import android.content.Context; import android.os.Build; import android.os.Bundle; import android.support.annotation.RequiresApi; import android.support.v7.app.AppCompatActivity; import android.telephony.TelephonyManager; import android.view.WindowManager; import android.widget.TextView; import java.util.List; public class MainActivity extends AppCompatActivity { ...
Read MoreHow can I create an android service that dalvik will not kill?
Before getting into example, we should know what service is in android. Service is going to do back ground operation without interact with UI and it works even after activity destroy.This example demonstrate about How can I create an android service that dalvik will not kill.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 text view, when user click on text view, it will start ...
Read MoreHow to check android mobile supports PRESSURE sensor?
This example demonstrate about How to check android mobile supports PRESSURE sensorStep 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 text view to show PRESSURE sensor information.Step 3 − Add the following code to src/MainActivity.javapackage com.example.myapplication; import android.annotation.SuppressLint; import android.content.Context; import android.hardware.Sensor; import android.hardware.SensorManager; import android.os.Build; import android.os.Bundle; import android.support.annotation.RequiresApi; import android.support.v7.app.AppCompatActivity; import android.widget.TextView; public class MainActivity extends AppCompatActivity { TextView textView; private ...
Read MoreHow to use poll() in android PriorityBlockingQueue?
Before getting into the example, we should know what PriorityBlockingQueue is. It is an unbounded queue and follows the same order as a priority queue. The main usage of priority blocking queue is, it going to handle out of memory error.This example demonstrates about How to use poll() in android PriorityBlockingQueueStep 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 a text view to show PriorityBlockingQueue ...
Read MoreThe 51% Attack
The 51% attack refers to an attack on the block chain network, deceiving the miners with a duplicate block chain which has more than 50% acceptance and spending the same bitcoins again.To put it in simple words, a single miner or a pool of miners controlling more than 50 (say 51%) of the cryptocurrency network’s mining hash power, can attack the block chain network and reverse the transactions. Once they have more than 50% of hashing power they can take control of the cryptocurrency network and they could double spend the coins.However, by controlling the majority of computing power on ...
Read MoreHow to lock Screen Orientation programmatically in iOS?
You might come across a scenario where you need to show the UI in a specific orientation may be Landscape or Portrait.We will be seeing how to lock orientation programmatically using Swift in iOS.Open Xcode → New Project → ViewController.swift write the below code.// Set the shouldAutorotate to False override open var shouldAutorotate: Bool { return false } // Specify the orientation. override open var supportedInterfaceOrientations: UIInterfaceOrientationMask { return .portrait }
Read More