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Articles by Anvi Jain
Page 34 of 43
Aligning two buttons vertically in iOS
Auto Layout is one the most important element when it comes to designing an iOS Application. UI development has become a lot more versatile and easier using Auto Layout.For Aligning two buttons vertically we will be using Auto Layout.So let’s get started!Step 1: Open Xcode → New Projecr → Single View Application → Let’s name it “AlignButtons”Step 2: Open Main.storyboard and add two buttons, name them button 1 and button 2.Step 3: Select both the buttons and align them vertically using the Add New Alignment Constraint menu.Step 4: Select both the buttons tap on Add new constraints and set it ...
Read MoreHow to sum the score of students with the same name in MySQL with ORDER BY?
For this, use ORDER BY along with GROUP BY clause. Let us first create a table with Student Name and Score −mysql> create table countRowValueDemo -> ( -> StudentId int NOT NULL AUTO_INCREMENT PRIMARY KEY, -> StudentName varchar(20), -> StudentMathScore int -> ); Query OK, 0 rows affected (0.71 sec)Following is the query to insert records in the table using insert command −mysql> insert into countRowValueDemo(StudentName, StudentMathScore) values('Larry', 45); Query OK, 1 row affected (0.19 sec) mysql> insert into countRowValueDemo(StudentName, StudentMathScore) values('Mike', 56); Query OK, 1 row affected (0.16 sec) mysql> insert into ...
Read MoreHow to check cursor array list is empty or not in Android sqlite?
Before getting into example, we should know what sqlite data base in android is. SQLite is an open source SQL database that stores data to a text file on a device. Android comes in with built in SQLite database implementation. SQLite supports all the relational database features. In order to access this database, you don't need to establish any kind of connections for it like JDBC, ODBC etc.This example demonstrate about How to check cursor array list is empty or not in Android sqlite.Step 1 − Create a new project in Android Studio, go to File ⇒ New Project and ...
Read MoreHow to append data from array deque to arraylist for listview in Android?
This example demonstrate about How to append data from array deque to array list for list view 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/login.xml. In the above code, we have taken name as Edit text, when user click on save button it will store the data into arraylist. Click on refresh button to ...
Read MoreSet LabelValue value and label in Java
To set LabelValue value and label in Java, use the setLabel() and setValue() methods. Let us first see what we need to work with JavaTuples. To work with LabelValue class in JavaTuples, you need to import the following package −import org.javatuples.LabelValue;Note − Download JavaTuples Jar library to run JavaTuples program. If you are using Eclipse IDE, then Right Click Project -> Properties -> Java Build Path -> Add External Jars and upload the downloaded JavaTuples jar file. Refer the below guide for all the steps to run JavaTuples −Steps − How to run JavaTuples program in EclipseThe following is an ...
Read MoreHow to check if Location Services are enabled in iOS App?
Location services as the name suggests gather the user information via GPS, Wifi and cell towers. Every iOS device has on board GPS, WiFi, cell tower location data and Bluetooth to determine the location of the iPhone or iPad. The user can enable or disable location services from the Settings app by toggling the Location Services switch in General.You should check the return value of locationServiceEnabled() method before starting location updates to determine whether the user has location services enabled for the current device.To check if Location Services are enabled in iOS app checkout the codeOpen Xcode → New Project ...
Read MoreHow to get current location provider information in android?
This example demonstrate about How to get current location provider information 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 a text view to show the current network location provider.Step 3 − Add the following code to src/MainActivity.javapackage com.example.myapplication; import android.Manifest; import android.content.pm.PackageManager; import android.location.Address; import android.location.Geocoder; import android.location.Location; import android.location.LocationManager; import android.os.Build; import android.os.Bundle; import android.support.annotation.RequiresApi; import android.support.v4.app.ActivityCompat; import android.support.v7.app.AppCompatActivity; import android.widget.TextView; ...
Read MoreCompile 32-bit program on 64-bit gcc in C and C++
Nowadays the compiler comes with default 64-bit version. Sometimes we need to compile and execute a code into some 32bit system. In that time, we have to use thisS feature.At first, we Shave to check the current target version of the gcc compiler. To check this, we have to type this command.gcc –v Using built-in specs. COLLECT_GCC=gcc COLLECT_LTO_WRAPPER=/usr/lib/gcc/x86_64-linux-gnu/7/lto-wrapper OFFLOAD_TARGET_NAMES=nvptx-none OFFLOAD_TARGET_DEFAULT=1 Target: x86_64-linux-gnu ........... ........... ...........Here it is showing that Target is x86_64. So we are using the 64-bit version of gcc. Now to use the 32-bit system, we have to write the following command.gcc –m32 program_name.cSometimes this command may generate ...
Read MoreHow to get duplicate records from Android sqlite?
Before getting into example, we should know what sqlite data base in android is. SQLite is an open source SQL database that stores data to a text file on a device. Android comes in with built in SQLite database implementation. SQLite supports all the relational database features. In order to access this database, you don't need to establish any kind of connections for it like JDBC, ODBC etc.This example demonstrate about How to get duplicate records from Android sqliteStep 1 − Create a new project in Android Studio, go to File ⇒ New Project and fill all required details to ...
Read MoreType difference of character literals in C vs C++
In C++ the size of the character constants is char. In C the type of character constant is integer (int). So in C the sizeof(‘a’) is 4 for 32bit architecture, and CHAR_BIT is 8. But the sizeof(char) is one byte for both C and C++.Example#include main() { printf("%d", sizeof('a')); }Output4Example#include using namespace std; main(){ cout
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