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 by Fendadis John
Page 2 of 4
Incrementing an integer inside loop in an ABAP program
To increment an integer inside a loop in an ABAP program, you have several methods available. The most common approaches involve using the ADD statement or direct assignment operations. Methods for Incrementing Integers Using ADD Statement The most straightforward way to increment an integer is using the ADD statement − DATA: ls_id TYPE i VALUE 0. DO 5 TIMES. ADD 1 TO ls_id. WRITE: / 'Current value:', ls_id. ENDDO. Using Assignment Operation You can also increment using direct assignment. Note that proper spacing is required between the ...
Read MoreCreating a variable with dynamic variable type in SAP ABAP
You can use RTTS (Run Time Type Services) related API to create a standard table like RANGE which has components like LOW, HIGH, SIGN, and OPTION. This technique allows you to dynamically create variables with types determined at runtime. Variable Declarations First, declare the necessary variables and references for dynamic type creation − DATA: rr_data TYPE REF TO data, rt_range_string TYPE RANGE OF string, ...
Read MoreHow to import java.lang.String class in Java?
To import any package in the current class you need to use the import keyword asimport packagename;Exampleimport java.lang.String; public class Sample { public static void main(String args[]) { String s = new String("Hello"); System.out.println(s); } }OutputHello
Read MoreUse static Import for sqrt() and pow() methods in class Math in Java
Static import means that the fields and methods in a class can be used in the code without specifying their class if they are defined as public static.The Math class methods sqrt() and pow() in the package java.lang are static imported. A program that demonstrates this is given as follows:Exampleimport static java.lang.Math.sqrt; import static java.lang.Math.pow; public class Demo { public static void main(String args[]) { double num = 4.0; System.out.println("The number is: " + num); System.out.println("The square root of the above number is: " + sqrt(num)); System.out.println("The ...
Read MoreName validation using Java Regular Expressions
The name can be validated using the java.util.regex.Pattern.matches() method. This method matches the regular expression for the name and the given input name and returns true if they match and false otherwise.A program that demonstrates this is given as follows:Examplepublic class Demo { public static void main(String args[]) { String name = "John Harry Smith"; String regexName = "\p{Upper}(\p{Lower}+\s?)"; String patternName = "(" + regexName + "){2, 3}"; System.out.println("The name is: " + name); System.out.println("Is the above name valid? " + name.matches(patternName)); } ...
Read MoreSorting collection of String and StringBuffer in Java
In order to sort in Java as we know we can use either Comparable or Comparator interfaces in which we could also define our custom logic to sort.One of the approach to sort is to add the entity in TreeSet or TreeMap which would sort the entries as internally they also uses the comparable interface. Now String class in Java internally implements comparable interface so whenever we add string to a tree set or map it uses comparable logic of string class and sort the input entry strings.But String buffer do not have the implementation of comparable interface so ...
Read Morefinal, finally and finalize in Java
The final keyword can be used with class method and variable. A final class cannot be inherited, a final method cannot be overridden and a final variable cannot be reassigned.The finally keyword is used to create a block of code that follows a try block. A finally block of code always executes, whether or not an exception has occurred. Using a finally block allows you to run any cleanup-type statements that you just wish to execute, despite what happens within the protected code.The finalize() method is used just before object is destroyed and can be called just prior to object ...
Read MoreHow to sort string array in android listview?
This example demonstrate about How to sort string array in android listview.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 code, we have taken listview to show a sorted arrayStep 3 − Add the following code to src/MainActivity.javapackage com.example.myapplication; import android.os.Bundle; import android.support.v7.app.AppCompatActivity; import android.widget.ArrayAdapter; import android.widget.EditText; import android.widget.ListView; import java.util.Arrays; public class MainActivity extends AppCompatActivity { ListView list; String[] array = {"2", "5", ...
Read MoreHow to print integer array in android Log?
This example demonstrate about How to print integer array in android Log.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 code, we have taken listview to show integer arrayStep 3 − Add the following code to src/MainActivity.javapackage com.example.myapplication; import android.os.Bundle; import android.support.v7.app.AppCompatActivity; import android.util.Log; import android.widget.ArrayAdapter; import android.widget.EditText; import android.widget.ListView; import java.util.ArrayList; import java.util.Arrays; import java.util.Collections; public class MainActivity extends AppCompatActivity { ListView list; ...
Read MoreHow to find common elements from arrays in android listview?
This example demonstrate about How to find common elements from arrays in android listview.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 code, we have taken listview to show array values.Step 3 − Add the following code to src/MainActivity.javapackage com.example.myapplication; import android.os.Bundle; import android.support.v7.app.AppCompatActivity; import android.util.Log; import android.widget.ArrayAdapter; import android.widget.EditText; import android.widget.ListView; import java.util.ArrayList; import java.util.Arrays; import java.util.Collections; public class MainActivity extends AppCompatActivity { ListView ...
Read More