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Introduction In this tutorial, we implement an approach to find the longest substring of only 4 using the first N characters of the infinite string. Infinite string using 4 looks like this: “44444444……” and for this string we define the length of characters to consider for solving the task. To solve the problem of this tutorial, consider an input numerical string, We solve this problem using two conditions and those conditions are as follows: Consider an input string with random digits and generate the longest substring of 4’s from the string. We consider an infinite string of combinations of ... Read More
Introduction In this tutorial, we will discuss probabilistic data structures in detail. This tutorial will cover the meaning of a Probabilistic Data Structure, its types, and its benefits. When dealing with large data sets or Big Data, basic data structures that use hashtables or HashSets would not be effective enough. As the data size increases, memory requirements increase with limited time for solving a query which restricts the functionality of deterministic basic data structures. Probabilistic data structures are approximate data structures that are collections of data structures. They are called so because they do not provide exact values. They ... Read More
Introduction In this tutorial, we implement an approach to find the kth substring after sorting all the substrings according to some conditions for a given string and the value of k. The condition to sort the substring is that the substrings are alphabetical while producing the substring in the order of their occurrence of each character in the alphabet. The first alphabet generates all its substrings, then the second alphabet produces all its substrings, and so on. Consider an example: the input string is “abc”, the alphabetically sorted substrings are “a”, “ab”, “abc”, “b”, “bc”, “c”. Predefined the value of ... Read More
A TestNG class can have different tests like test1, test2, test3 etc. Once a user runs the TestNG class consisting of various tests, it runs the test cases in alphabetically order based on the name provided. However, user can assign the priority to these tests so that these tests can run as per user’s priority. Priority starts from 0 and be in incremental order. Priority 0 takes the highest priority and decreasing the priority when priority gets increase as 1, 2, 3 etc. In this article, let’s analyse how order of execution takes place in different ways. Scenario 1 If ... Read More
Maven is a project management and comprehension tool that provides a complete build lifecycle framework. User can automate the project's build infrastructure in almost no time as Maven uses a standard directory layout and a default build lifecycle. To summarize, Maven simplifies and standardizes the project build process. It handles compilation, distribution, documentation, team collaboration and other tasks seamlessly. Maven increases reusability and takes care of most of the build related tasks. TestNG is a testing framework and can use Maven as build tool. It helps to maintain dependencies and their version at one place in pom.xml User can run ... Read More
Maven is a project management and comprehension tool that provides a complete build lifecycle framework. User can automate the project's build infrastructure in almost no time as Maven uses a standard directory layout and a default build lifecycle. To summarize, Maven simplifies and standardizes the project build process. It handles compilation, distribution, documentation, team collaboration and other tasks seamlessly. Maven increases reusability and takes care of most of the build related tasks. TestNG is a testing framework and can use Maven as build tool. It helps to maintain dependencies and their version at one place in pom.xml User can run ... Read More
TestNG is a testing framework and can use Maven as build tool. It helps to maintain dependencies and their version at one place in pom.xml Maven provides flexibility to run using surefire plugin. If a user has multiple testng.xml files (please note one testng files contains only one test suite), he/she may run the specific suite based on the requirement. Maven provides the flexibility to define suiteXMLFiles as variable and pass the value of variable at run time using command line. In this article we will illustrate how to run specific TestNG suite with maven from command line. Approach/Algorithm to ... Read More
JUnit and TestNG are the most popular testing frameworks for Java applications. Both frameworks are easy to use. But, they are different with each other. Their import libraries are different so the identifying the code is also different. In this article, we will discuss whether it is possible to mix TestNG and Junit assertions together in same Test. Let’s analyse how these two frameworks work. TestNG When user writes any @Test or other annotations, it needs to import a library as import org.testng.annotations.Test; Here, testng is the key to identify the @Test or any other code execution is based on ... Read More
TestNG supports multi−threading i.e. a @Test methods can be invoked parallelly. A test or multiple test methods can be invoked from multiple threads. Therefore, multiVthread is useful if @Test methods need to be run asynchronously in parallel. Multi−threading can be achieved by using keyword − thread−count = at Testng.xml. Thread count is basically number of instances running to execute multiple tests simultaneously or parallelly. The attribute thread−count allows the user to specify how many threads should be run for this execution. In this example, 5 @Test method will execute in parallel from 5 threads. In this article, we will ... Read More
JUnit and TestNG are the most popular testing frameworks for Java applications. Both frameworks are easy to use. So, when it comes to choose the testing framework for your application, it’s better to have a high−level idea of what features are present in one or the other and then take the informed decision based on your project requirements. In this article, we will see JUnit vs TestNG. Junit vs TestNG JUnit current version is 5.7.1 and it’s still evolving and working on to include more features. TestNG current version is 7.4.0 and it’s mature and features rich. Following table compares ... Read More