Java, Hibernate, Spring, Closure, Vaadin, Liferay, WebServices, MySQL, Oracle, C++, Linux, Tutorials
Sometimes it is useful to show all your constraints, you have set on a Table in your Database. To achive this, type the following statement SELECT DISTINCT(constraint_name) from information_schema.table_constraints where constraint_schema = “ order by constraint_name ASC; MySQL should return a list like this, depends on your constraints +————————+ | constraint_name | +————————+ | bugsnumk […]
Groovy gave us, since version 1.5.5 the methods head() and last(), tail() since version 1.5.6 to get the head or the last element of a Collection, with tail() you’ll get all but the head element and in version 2.4 there was a new method introduced, which is called init(), with this you get all elements […]
With this two methods we can easily create a Stack based on a Collection, like in my following example: // let’s define a stack with some elements on it def stack = [„Anton“, „Karl“, 12, 42, 4711, „SSP“, „Tutorial“, „PatrickO’s Tutorials“, 19.23] // check the size of our stack, should be 9 assert stack.size() == […]
Today i want to show the advantages of using Groovy to sort a list of Strings alphabetically. First i want to show how to do it in Java < 8 and the Java8 Way, then i'll give an example of the Groovy way. package workingwithstrings; import java.util.ArrayList; import java.util.Comparator; import java.util.List; import java.util.stream.Collectors; public class […]
The Domain class Location /* * Copyright 2014 Patrick Ott . * * Licensed under the Apache License, Version 2.0 (the „License“); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law […]
This was a question on SO, so here is a first solution: The Result shoul look like this: Entry [firstName=Peter, lastName=Pan, areaCode=+49, phoneNumber=123569878] Entry [firstName=Heidi, lastName=Klum, areaCode=+49, phoneNumber=78644567] Entry [firstName=Max, lastName=Mustermann, areaCode=+49, phoneNumber=47110815] Entry [firstName=Rumpel, lastName=Stilzchen, areaCode=+49, phoneNumber=1458765] Entry [firstName=Moritz, lastName=Mustermann, areaCode=+49, phoneNumber=87652345] The Code: package de.professional_webworkx.blog.phonebook.model; public class Entry { private String firstName; private […]
Damit wir in C++ auch eine tolle Liste zur Verfügung haben, die wir für verschiedene Datentypen einsetzen können, nachfolgend eine Idee, für solche eine Liste. /* * classtemplates.cpp * * Created on: 31.12.2013 * Author: ottp */ #include #include using namespace std; template class List { public: T list[10]; void add(int idx, T t) { […]
Try the sample code and search for the title of all books, which are listed within the books.xml file. package de.professional_webworkx.jee6.booksxpath; import java.io.File; import java.io.IOException; import java.util.Iterator; import java.util.List; import org.jdom2.xpath.*; import javax.xml.parsers.SAXParserFactory; import org.jdom2.Document; import org.jdom2.Element; import org.jdom2.JDOMException; import org.jdom2.input.SAXBuilder; public class SearchBookTitle { public static void main(String[] args) { try { // get […]
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