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Articles by Srinivas Gorla
Page 4 of 5
What does the method removeRange(int fromIndex, int toIndex) do in java?
The removeRange() method of the ArrayList class removes all of the elements from this List whose index is between fromIndex and toIndex.Exampleimport java.util.*; public class ArrayListDemo extends ArrayList{ public static void main(String[] args) { ArrayListDemo arrlist = new ArrayListDemo(); arrlist.add(10); arrlist.add(12); arrlist.add(31); System.out.println("The list:" + arrlist); arrlist.removeRange(0,2); System.out.println("The list after using removeRange:" + arrlist); } }OutputThe list:[10, 12, 31] The list after using removeRange:[31]
Read MoreHow to convert an object to byte array in java?
To convert an object to byte arrayMake the required object serializable by implementing the Serializable interface.Create a ByteArrayOutputStream object.Create an ObjectOutputStream object by passing the ByteArrayOutputStream object created in the previous step.Write the contents of the object to the output stream using the writeObject() method of the ObjectOutputStream class.Flush the contents to the stream using the flush() method.Finally, convert the contents of the ByteArrayOutputStream to a byte array using the toByteArray() method.Exampleimport java.io.ByteArrayOutputStream; import java.io.ObjectOutputStream; import java.io.Serializable; class Sample implements Serializable { public void display() { System.out.println("This is a sample ...
Read MoreHow can we create MySQL stored procedure to calculate the factorial?
mysql> DELIMITER // mysql> CREATE PROCEDURE get_factorial(IN N INT) -> BEGIN -> SET @@GLOBAL.max_sp_recursion_depth = 255; -> SET @@session.max_sp_recursion_depth = 255; -> -> CALL factorial_recursive (N, @factorial); -> -> SELECT @factorial; -> END // Query OK, 0 rows affected (0.00 sec) mysql> DELIMITER // mysql> CREATE PROCEDURE factorial_recursive(IN N INT, OUT factorial INT) -> BEGIN -> IF N = 1 THEN -> SET factorial := 1; -> ...
Read MoreWhile running MySQL statements in batch mode, how can we print, along with output, which statements are getting executed?
By using –v option in batch mode, the MySQL statements can be printed along with output. For example, after running the same query in batch mode with –v option we will get the statement printed along with output.C:\Program Files\MySQL\bin>mysql -u root -p gaurav < hh.sql -v Enter password: ***** -------------- select * from hh -------------- id 1 2It is showing the statement select * from hh which is written in the file hh.sql.
Read MoreWhy do we use const qualifier in C++?
We use the const qualifier to declare a variable as constant. That means that we cannot change the value once the variable has been initialized. Using const has a very big benefit. For example, if you have a constant value of the value of PI, you wouldn't like any part of the program to modify that value. So you should declare that as a const.Objects declared with const-qualified types may be placed in read-only memory by the compiler, and if the address of a const object is never taken in a program, it may not be stored at all. For ...
Read MoreHow can I export values based on some conditions from MySQL table into a file?
We can use the conditions in WHERE clause while exporting the data from MySQL table to a file. It can be understood with the help of an example −ExampleSuppose we are having following data from table ‘Student_info’ −mysql> Select * from Student_info; +------+---------+------------+------------+ | id | Name | Address | Subject | +------+---------+------------+------------+ | 101 | YashPal | Amritsar | History | | 105 | Gaurav | Chandigarh | Literature | | 125 | Raman | Shimla | Computers | | 130 | Ram | Jhansi | ...
Read MoreWhat is the proper way to retrieve the value stored in INT column as MySQL TIMESTAMP?
We can use FROM_UNIXTIME() function to retrieve the value, as MySQL TIMESTAMP, stored as INT in the column of a table.For example, we have a table called ‘test123’ which has a column named ‘val1’. In this column, we stored the integer values as follows −mysql> Select * from test123; +------------+ | val1 | +------------+ | 150862 | | 1508622563 | | 622556879 | | 2147483647 | +------------+ 4 rows in set (0.00 sec)Now with the help of the FROM_UNIXTIME() function, we can retrieve the column integer values in the form of MySQL TIMESTAMP data.mysql> Select ...
Read MoreTurnoff redirect to mobile pages in SAP Hybris
To start with, first, you need to turn off the cookies on a mobile device. Next is to run the following command to the “project.properties” file of your storefront extension. Example# disabling the mobiles redirects:# uiexperience.level.supported.b2ctelco=DESKTOP uiexperience.level.supported=DESKTOPWhen this function is used, it communicates to SAP Hybris system that only DESKTOP based support is required.
Read MoreAlternative of SAP .NET Connector
There are various (not many as for JAVA and others) possible ways to achieve the task. One way is to go for existing remote function calls library for establishing a connection. There are free to use wrappers written around RFC to serve the task.Another library available for the same and mostly used is ERPConnect. It is easy to use and provides an easy mechanism to call BAPI, functions and table calls.But the best way to go for use is web services but for that, you have to be on ERP5.0 or higher. In such case, no .NET connector is required ...
Read MoreWhat is a "translation unit" in C++
A translation unit is any preprocessed source file.A translation unit is the basic unit of compilation in C++. This unit is made up of the contents of a single source file after it passes through preprocessing. It contains included any header files without blocks that are ignored using conditional preprocessing statements like ifdef, ifndef, etc.A single translation unit can be compiled into an object file, library, or executable program.
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