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Articles on Trending Technologies
Technical articles with clear explanations and examples
C++ Program to Represent Linear Equations in Matrix Form
This is a C++ program to represent Linear Equations in matrix form.AlgorithmBegin 1) Take the no of variables n and the coefficients of each variable as input. 2) Declare a matrix[n][n] and constant[n][1]. 3) Make for loops i = 0 to n-1 and j = 0 to n-1 to take the coefficients of each variable as the elements of the matrix. 4) Display the matrix by using nested for loops. EndExample#include using namespace std; int main(void) { char variable[] = { 'x', 'y', 'z', 'd' }; cout > n; cout > matrix[i][j]; } cin >> constant[i][0]; } cout
Read MoreExtracting filenames from a path in MySQL?
To extract filenames from a path MySQL, you can use SUBSTRING_INDEX(). The syntax is as follows −SELECT SUBSTRING_INDEX(ypurColumnName, '', -1) as anyAliasName FROM yourTableName;To understand the above syntax, let us create a table. The query to create a table is as follows −mysql> create table ExtractFileNameDemo -> ( -> Id int NOT NULL AUTO_INCREMENT PRIMARY KEY, -> AllProgrammingFilePath varchar(100) -> ); Query OK, 0 rows affected (0.50 sec)Now you can insert some records in the table using insert command. The query is as follows −mysql> insert into ExtractFileNameDemo(AllProgrammingFilePath) ...
Read MoreHow to get information about USB mounted or not in android?
This example demonstrate about How to get information about USB mounted or not 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 text view to show USB mount information.Step 3 − Add the following code to src/MainActivity.javapackage com.example.myapplication; import android.app.KeyguardManager; import android.content.Context; import android.net.ConnectivityManager; import android.net.Network; import android.net.NetworkInfo; import android.os.Build; import android.os.Bundle; import android.os.Environment; import android.support.annotation.RequiresApi; import android.support.v7.app.AppCompatActivity; import android.widget.TextView; public class ...
Read MoreC++ Program to Print the Kind of Rotation the AVL Tree is Undergoing When you Add an Element or Delete an Element
AVL tree is a self-balancing Binary Search Tree where the difference between heights of left and right subtrees cannot be more than one for all nodesTree rotation is an operation that changes the structure without interfering with the order of the elements on an AVL tree. It moves one node up in the tree and one node down. It is used to change the shape of the tree, and to decrease its height by moving smaller subtrees down and larger subtrees up, resulting in improved performance of many tree operations. The direction of a rotation depends on the side which ...
Read MoreDetect home button press in android
This example demonstrates about Detect home button press 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. In the above code, we have taken a text view.Step 3 − Add the following code to src/MainActivity.javapackage com.example.myapplication; import android.app.Activity; import android.os.Bundle; import android.view.View; import android.widget.TextView; import android.widget.Toast; public class MainActivity extends Activity { TextView text; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); ...
Read MoreHow to suppress MySQL stored procedure output?
To suppress MySQL stored procedure output, you can use variable. Let us first create a table.mysql> create table person_information -> ( -> Id int, -> Name varchar(20) -> ); Query OK, 0 rows affected (0.50 sec)Following is the query to insert some records in the table using insert command:mysql> insert into person_information values(100, 'John'); Query OK, 1 row affected (0.17 sec) mysql> insert into person_information values(101, 'Chris'); Query OK, 1 row affected (0.22 sec) mysql> insert into person_information values(102, 'Robert'); Query OK, 1 row affected (0.16 sec)Following is the query to display records from ...
Read MoreC++ Program to Optimize Wire Length in Electrical Circuit
This is a C++ Program to optimize Wire Length in Electrical Circuit.AlgorithmBegin Function optimizeLength() : 1) Declare a array dist[N]. 2) sptSet[i] will be true if component i is included in shortest path tree or shortest distance from src to i is finalized. 3) Initialize all distances as INFINITE and stpSet[] as false 4) Distance of source component from itself will be always 0. 5) Run a for loop cnt = 0 to N-2, Find shortest path for all components. A) Pick the minimum distance component from the set of ...
Read MoreSuccessive approximation ADC interface
The Model ALS-NIFC-07 which on approximating successfully ADC is clearly described in this topic. It consists of a programmable timer interface which connects to the kit of ALS-SDA-85M by using a flat cable of 26 crores. The connector C1 gets connected to the interface by the Input Output connector P3 in the kit for the ALS, which is implemented on a flat cable. The power supply of +12V, -12V, +5V, and GND gets connected to the interface. The circuit description is shown below –C1 is connected to connector P3 (or P4) on ALS kit, for ADC interface purposeC2 is connected ...
Read MoreThe contains() method of Java Unit Tuple
To search a value in Unit class in JavaTuples, use the contains() method.Let us first see what we need to work with JavaTuples. To work with the Unit class in JavaTuples, you need to import the following package −import org.javatuples.Unit;Note − Steps to download and run JavaTuples program If you are using Eclipse IDE to run Unit Class in Java Tuples, then Right Click Project → Properties → Java Build Path → Add External Jars and upload the downloaded JavaTuples jar file.The following is an example −Exampleimport org.javatuples.Unit; public class Demo { public static void main(String[] args) { ...
Read MoreHow to open youtube app from webview in android?
This example demonstrate about How to open youtube app from webview 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 web view to show youtube app.Step 3 − Add the following code to src/MainActivity.javapackage com.example.myapplication; import android.app.ProgressDialog; import android.os.Build; import android.os.Bundle; import android.support.annotation.RequiresApi; import android.support.v7.app.AppCompatActivity; import android.view.View; import android.webkit.WebChromeClient; import android.webkit.WebSettings; import android.webkit.WebView; import android.widget.EditText; public class MainActivity extends AppCompatActivity { ...
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