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This example demonstrates how can I make my custom objects ParcelableStep 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 view to show parcel object values.Step 3 − Add the following code to src/MainActivity.javapackage com.example.myapplication; 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.widget.Toast; public class MainActivity extends AppCompatActivity { parcleObject sample; @RequiresApi(api = Build.VERSION_CODES.LOLLIPOP) @Override protected ... Read More
To check any services related to location in ios with swift we can use the CLLocationManager.In this example we’ll see how to check if the location manager is running or not. We’ll do this with help of an sample project. So, create a new project. First we need to create a locationManager object, so in your view controller.var locationManager = CLLocationManager()Now, we first of all we need to check if the location services are enabled on the device or not. To check this we’ll useCLLocationManager.locationServicesEnabled() function, which returns a Boolean value showing whether the location service on device is active ... Read More
To insert a special character such as “ ‘ “ (single quote) into MySQL, you need to use \’ escape character. The syntax is as follows −insert into yourTableName(yourColumnName) values(' yourValue\’s ');To understand the above syntax, let us create two tables. The query to create first table is as follows −mysql> create table AvoidInsertErrorDemo -> ( -> Id int NOT NULL AUTO_INCREMENT PRIMARY KEY, -> Sentence text -> ); Query OK, 0 rows affected (0.53 sec)Now you can insert special character such as ‘ in the table using insert command. The query is as follows −mysql> insert into AvoidInsertErrorDemo(Sentence) values('a ... Read More
Let’s say you have a table with UserLoginTime column wherein we have stored some values for sample. This is the login time of users and we want to filter all these records on the basis of current day, month and year i.e. the current date. We will beLet us now create the table we discussed abovemysql> create table userLoginInformation - > ( - > UserId int NOT NULL AUTO_INCREMENT PRIMARY KEY, - > UserName varchar(20), - > UserLoginTime datetime - > ); Query OK, 0 rows affected (0.79 sec)Insert some records in the table using ... Read More
This example demonstrate about how can I make my custom objects SerializableStep 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 view to show Serializable object values.Step 3 − Add the following code to src/MainActivity.javapackage com.example.myapplication; 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.widget.Toast; public class MainActivity extends AppCompatActivity { serializableObject sample; @RequiresApi(api = Build.VERSION_CODES.LOLLIPOP) @Override ... Read More
Topological sorting of DAG (Directed Acyclic Graph) is a linear ordering of vertices such that for every directed edge uv, where vertex u comes before v in the ordering. If the graph is not a DAG, Topological Sorting for a graph is not possible.Functions and pseudocodesBegin function topologicalSort(): a) Mark the current node as visited. b) Recur for all the vertices adjacent to this vertex. c) Push current vertex to stack which stores result. End Begin function topoSort() which uses recursive topological sort() function: a) Mark all the vertices which are not visited. ... Read More
You need to use date type to work with date before 1970 because date stores value from 1000 to 9999. A date type can be used when you need to work with date part only not for time purpose.MySQL gives the data in the following format. The format is as follows −‘YYYY-MM-DD’The starting date range is as follows −1000-01-01The ending date range is as follows −9999-12-31To understand what we discussed above, let us create two tables. The query to create first table is as follows −mysql> create table DateDemo -> ( -> Id int ... Read More
When you restart your application, i.e., web server, this will reset your application variable and your hit counter will reset to zero. To avoid this loss, consider the following points −Define a database table with a single count, let us say hitcount. Assign a zero value to it.With every hit, read the table to get the value of hitcount.Increase the value of hitcount by one and update the table with the new value.Display the new value of hitcount as a total page hit counts.If you want to count hits for all the pages, implement above logic for all the pages.Read More
The LongStream mapToObj() method is used in Java to return an object-valued Stream consisting of the results of applying the given function to the elements of this stream.The syntax is as follows: StreammapToObj(LongFunction
A Hamiltonian cycle is a Hamiltonian Path such that there is an edge (in graph) from the last vertex to the first vertex of the Hamiltonian Path. It is in an undirected graph is a path that visits each vertex of the graph exactly once.Functions and purposes:Begin 1.function isSafe() is used to check for whether it is adjacent to the previously added vertex and already not added. 2. function hamiltonianCycle() solves the hamiltonian problem. 3. function hamCycle() uses hamiltonianCycle() to solve the hamiltonian problem. It returns false if there is no Hamiltonian Cycle possible, ... Read More