Paul Richard has Published 109 Answers

How to extract certain substring from a string using Java?

Paul Richard
Paul Richard
Published on 04-Jan-2018 15:36:52
You can extract a substring from a String using the substring() method of the String class to this method you need to pass the start and end indexes of the required substring.ExampleLive Demopublic class Substring {    public static void main(String args[]) {       String str = ... Read More

How to find if a string is a palindrome using Java?

Paul Richard
Paul Richard
Published on 04-Jan-2018 13:04:59
StringBuffer provides a method with name reverse() one way to check for a palindrome isCreate a StringBuffer object by passing the required string as a parameter to the constructor.Reverse the contents of the object using the reverse() method.Convert the StringBuffer object to Sting using the toString() method.Now, compare the String and the reversed ... Read More

What is the difference between a String object and a String literal in Java?

Paul Richard
Paul Richard
Published on 04-Jan-2018 12:44:39
When the String literal used to create String, JVM initially checks weather String with the same value in the String constant pool, if available it creates another reference to it else it creates a new object and stores it in the String constant pool.In case of an object, each time you instantiate ... Read More

Which package is used for pattern matching with regular expressions in java?

Paul Richard
Paul Richard
Published on 03-Jan-2018 17:27:57
Java provides the java.util.regex package for pattern matching with regular expressions.

What is the scope of public access modifier in Java?

Paul Richard
Paul Richard
Published on 03-Jan-2018 15:11:21
The public modifier has the widest scope. When a class or its members declared public they are accessible from everywhere. A default class or its members are available to any other class in the same package. However, if the public class we are trying to access is in a different ... Read More

Extracting data from SAP HANA database and load to ORACLE database

Paul Richard
Paul Richard
Published on 14-Dec-2017 10:13:42
There is a number of ways you can achieve this. Here are few of the methods to do the same.a) There are many standard tools in SAP by use of which you can extract the data and also automate the whole process. With the use of an ETL tool, this ... Read More

Estimation of number of SAP programs and factor deciding it

Paul Richard
Paul Richard
Published on 13-Dec-2017 16:30:13
There is no official table as you quoted in your example as there is a number of factors on which estimation depends, for example:a) Programmer experience b) Complexity of code c) Interaction with other interfaces d) Your standard and best practicesYou would require building your own formula/technique based on various factors and map ... Read More

Using HTML control and SAPUI5 controls and advantages of using UI5 controls over HTML controls

Paul Richard
Paul Richard
Published on 13-Dec-2017 16:26:14
Here are answers to your questions:a) Can we use both SAPUI5 and HTML controls at the same time or is it better to use SAPUI5 alone?The best practice would be to use SAPUI5 alone. If there are any controls, that you are not able to find in SAPUI5, then you ... Read More

Using SAP T-code SM37 to check background jobs in SAP system

Paul Richard
Paul Richard
Published on 08-Dec-2017 14:13:26
In SM37 you can only see the scheduled background jobs as it is not used for foreground jobs. Below shows an initial screen of SM37 Transaction code:
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