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Articles by Vikyath Ram
Page 10 of 10
Java ResultSet getRow() method with example
When we execute certain SQL queries (SELECT query in general) they return tabular data.The java.sql.ResultSet interface represents such tabular data returned by the SQL statements.i.e. the ResultSet object holds the tabular data returned by the methods that execute the statements which quires the database (executeQuery() method of the Statement interface in general).The ResultSet object has a cursor/pointer which points to the current row. Initially this cursor is positioned before first row.The getRow() method of the ResultSet interface retrieves the current row number/position of the ResultSet pointer.This method returns an integer value representing the current row number to which the ResultSet pointer points to.ExampleLet us ...
Read MoreUse boolean value to stop a thread in Java
A thread can be created by implementing the Runnable interface and overriding the run() method. Then a Thread object can be created and the start() method called.A thread can be stopped using a boolean value in Java. The thread runs while the boolean value stop is false and it stops running when the boolean value stop becomes true.A program that demonstrates this is given as follows:Exampleclass ThreadDemo extends Thread { public boolean stop = false; int i = 1; public void run() { while (!stop) { try { ...
Read MorePython program to generate all possible valid ID address from given string
String is given. String contains only digit. Our task is to check all possible valid IP address combinations. Here first we check the length of the string then split by ".". Then we check the different combination of ".". Example Input : "255011123222" It's not a valid IP address. Input : 255011345890 Valid IP address is 255.011.123.222 Algorithm Step 1: First check the length of the string. Step 2: Split the string by ".". We will place 3 dots in the given string. W, X, Y, and Z are numbers from 0-255 the numbers cannot be ...
Read MoreWhat does abstract modifier in Java do?
An abstract keyword is used to declare methods abstract methods and abstract classes. Once a method is declared abstract we should not specify body for those. Example public abstract class Sample{ public abstract demo(){ } } Error Sample.java:2: error: invalid method declaration; return type required public abstract demo(){ ^ 1 error And once a class is declared abstract it cannot be instantiated. Example public abstract class Sample{ public abstract void demo(); public static void main(String args[]){ new Sample(); } } Error C:\Sample>javac Sample.java Sample.java:4: error: Sample is abstract; cannot be instantiated new Sample(); ^ 1 error
Read MorePassing data from one report to another in ABAP using SUBMIT \\\\\\\\n
There doesn't seem to be any error in your syntax. Please verify if you declared the variables correctly. In case they are defined correctly, try the extended syntax check to see the error. The extended check can be done by going to PROGRAM => Check => Extended Syntax Check.
Read MoreRfcabapexception error while querying a number of columns using RFC_READ_TABLE in SAP
It is not because of a number of columns but the actual total size of the fields you are querying. It should not be more than 512 bytes. For RFC communication, the types likes DATA or STANDARD table are not supported. So the RFC_READ_TABLE function module has to convert the data into the generic format and the data is transferred as a series of lines. It is the size of these table lines that matter. The size cannot exceed 512 characters. If the size is greater than 512 characters, the module throws a Rfcabapexception exception with a short dump. The ...
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