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Though we all know python is not as fast or efficient as other complied languages. However, there are many big companies which shows us that python code can handle much bigger workload which shows it’s not that slow. In this section, we are going to see some of the tips that one should keep in mind so that a correct python program runs even faster and more efficient.Tip 1: Go for built-in functionsThough we can write efficient code in python, but it’s very hard to beat built-in functions(which are written in C). Below image shows the list of python built-in ... Read More
This example demonstrate about sending message through WhatsApp 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 text view.Step 3 − Add the following code to src/MainActivity.java import android.app.Activity; import android.content.Intent; import android.content.pm.PackageInfo; import android.content.pm.PackageManager; import android.os.Bundle; import android.view.View; import android.widget.TextView; import android.widget.Toast; public class MainActivity extends Activity { TextView textView; @Override public void onCreate(Bundle savedInstanceState) { ... Read More
The following are the two Instant timestamps:Instant one = Instant.ofEpochSecond(1355836728); Instant two = Instant.ofEpochSecond(1355866935);Get the Duration between both the Instant:Duration res = Duration.between(one, two);Now, get the seconds between the two timestamps:long seconds = res.getSeconds();Now, get the minutes between the two timestamps:long minutes = res.abs().toMinutes();Exampleimport java.time.Duration; import java.time.Instant; public class Demo { public static void main(String[] args) { Instant one = Instant.ofEpochSecond(1355836728); Instant two = Instant.ofEpochSecond(1355866935); Duration res = Duration.between(one, two); System.out.println(res); long seconds = res.getSeconds(); System.out.println("Seconds between Durations = "+seconds); ... Read More
To SELECT records if the absolute value of the difference between two values is greater than a certain number, following is the syntax:select *from yourTableName where abs(yourColumnName1-yourColumnName2) >= yourCertainNumber;Let us first create a table:mysql> create table DemoTable ( Number1 int , Number2 int ); Query OK, 0 rows affected (0.59 sec)Following is the query to insert some records in the table using insert command:mysql> insert into DemoTable values(10, 20); Query OK, 1 row affected (0.18 sec) mysql> insert into DemoTable values(100, 200); Query OK, 1 row affected (0.13 sec) mysql> insert into DemoTable values(400, 300); Query OK, 1 ... Read More
A new IntBuffer can be allocated using the method allocate() in the class java.nio.IntBuffer. This method requires a single parameter i.e. the capacity of the buffer. It returns the new IntBuffer that is allocated. If the capacity provided is negative, then the IllegalArgumentException is thrown.A program that demonstrates this is given as follows −Example Live Demoimport java.nio.*; import java.util.*; public class Demo { public static void main(String[] args) { int n = 5; try { IntBuffer buffer = IntBuffer.allocate(5); buffer.put(8); buffer.put(1); ... Read More
In this program we will see how to find the minimum number in a given array.Problem StatementWrite 8086 Assembly language program to find the minimum number in a given array, which is starts from memory offset 501. The size of the series is stored at memory offset 500. Store the minimum number at memory offset 600.DiscussionAt first we are taking the size of the array from memory offset 500. Then using that size, we are initializing the counter to read and check all the numbers. We are taking the first number into AL, then check each number and compare it ... Read More
In this section we will see how to write a program in C that cannot be terminated by the Ctrl + C key.The Ctrl + C generates the keyboard interrupt, and it stops the execution of the current process. Here when we will press the Ctrl + C key, it will print a message then continues the execution. To use this functionality, we will use the signal handling technique in C. When the Ctrl + C is pressed it generates SIGINT signal. There are some other signals and their functionalities in the following list.SignalDescriptionSIGABRTIndicates Abnormal terminationSIGFPE Indicates floating point exceptionSIGILL Indicates invalid ... Read More
The binhex module encodes and decodes files in binhex4 format. This format is used in the representation of Macintosh files in ASCII. Only the data fork is handled.The binhex module defines the following functions −binhex.binhex(input, output): Convert a binary file with filename input to binhex file output. The output parameter can either be a filename or a file-like object (any object supporting a write() and close() method).binhex.hexbin(input, output): Decode a binhex file input. input may be a filename or a file-like object supporting read() and close() methods. The resulting file is written to a file named output unless the argument is None ... Read More
The isScriptingEnabled attribute determines if the scripting elements are allowed for use.The default value (true) enables scriptlets, expressions, and declarations. If the attribute's value is set to false, a translation-time error will be raised if the JSP uses any scriptlets, expressions (non-EL), or declarations.The attribute's value can be set to false if you want to restrict the usage of scriptlets, expressions (non-EL), or declarations −
This example demonstrates How to clear heap watch limit 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 clear heap limit.Step 3 − Add the following code to src/MainActivity.javapackage com.example.myapplication; import android.app.ActivityManager; import android.app.admin.DevicePolicyManager; import android.content.Context; import android.net.wifi.WifiInfo; import android.net.wifi.WifiManager; 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.TextView; public class MainActivity extends AppCompatActivity { ... Read More