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Articles on Trending Technologies
Technical articles with clear explanations and examples
What is the difference between selenium and automation?
Automation − It is the technique to run the test cases without human intervention. If we are sticking to the IT industry, Automation is not just confined to Automation of test scripts. Automation is the basic control system in which human intervention is expected the least. Various many tasks such as Data Migration, Decision making for AI, deploying the code automatically in the latest builds for testing etc.Goals −The ultimate goal of Automation is to re-run the regression flows without intervention of manual tester. Initializing some amount of human effort is required to design the scripts. But the end result ...
Read MoreWhat is Maven in selenium?
Maven is Yiddish Word which means Accumulator of Knowledge. Maven is a tool which is used for building and managing Java Based Projects. Basically to put it in simple words is a way to manage dependency for Java Based Project. Maven can be used when building project with POM (Page Object Model) when working on big projects.Below are the objectives which can be achieved with maven −Easier and Uniform build process.Providing quality project informationEasy DocmentationBest practices developmentManage the dependenciesLets understand them one by oneEasier and Unfirom Build Process −Maven provides pom.xml configuration files where all information such as construction directory, ...
Read MoreWhere does Array stored in JVM memory in Java?
Array is a container which can hold a fix number of entities, which are of the of the same type. Each entity of an array is known as element and, the position of each element is indicated by an integer (starting from 0) value known as index.Exampleimport java.util.Arrays; public class ArrayExample { public static void main(String args[]) { Number integerArray[] = new Integer[3]; integerArray[0] = 25; integerArray[1] = 32; integerArray[2] = 56; System.out.println(Arrays.toString(integerArray)); } }Output[25, 32, 56]Arrays are two types −Single dimensional arrays: Normal ...
Read MoreHow can we remove a selected row from a JTable in Java?
A JTable is a subclass of JComponent class for displaying complex data structures. A JTable component can follow the Model View Controller (MVC) design pattern for displaying the data in rows and columns. A JTable can generate TableModelListener, TableColumnModelListener, ListSelectionListener, CellEditorListener and RowSorterListener interfaces. We can remove a selected row from a JTable using the removeRow() method of the DefaultTableModel class.Syntaxpublic void removeRow(int row)Exampleimport java.awt.*; import java.awt.event.*; import javax.swing.*; import javax.swing.table.*; public class RemoveSelectedRowTest extends JFrame { private JTable table; private DefaultTableModel model; private Object[][] data; private String[] ...
Read MoreWhich is the selenium latest version?
Selenium started with version 1 and now version 3 is the currently the latest released version available in the market. Let’s has a comparative study of the different features of each of the version.Selenium 1 or RC: As name suggest, RC is a Remote Control which works by taking the remote of the browser and then injects the automation code to be tested by injecting the custom scripts written.Selenium 2 or Web driver: The Web Driver (known as Selenium 2) works on the browser directly and uses browsers in-built features to trigger the automation test written by tester. Web driver ...
Read MoreSingle-Source Shortest Paths, Nonnegative Weights
The single source shortest path algorithm (for non-negative weight) is also known Dijkstra algorithm. There is a given graph G(V, E) with its adjacency matrix representation, and a source vertex is also provided. Dijkstra’s algorithm to find the minimum shortest path between source vertex to any other vertex of the graph G.From starting node to any other node, find the smallest distances. In this problem the graph is represented using the adjacency matrix. (Cost matrix and adjacency matrix is similar for this purpose).Input − The adjacency matrix −0 3 6 ∞ ∞ ∞ ∞ 3 0 2 1 ∞ ∞ ...
Read MoreCan we store objects in an array in Java?
Array is a container which can hold a fix number of items and these items should be of the same type. Most of the data structures make use of arrays to implement their algorithms. Following are the important terms to understand the concept of Array.Element: Each item stored in an array is called an element.Index: Each location of an element in an array has a numerical index, which is used to identify the element.Storing Objects in an arrayYes, since objects are also considered as datatypes (reference) in Java, you can create an array of the type of a particular class ...
Read MoreCan you change size of Array in Java once created?
An array is a data structure/container/object that stores a fixed-size sequential collection of elements of the same type. The size/length of the array is determined at the time of creation.The position of the elements in the array is called as index or subscript. The first element of the array is stored at the index 0 and, the second element is at the index 1 and so on.Each element in an array is accessed using an expression which contains the name of the array followed by the index of the required element in square brackets.For example, if an array of 6 ...
Read MoreWhat is an anonymous array and explain with an example in Java?
An array is a data structure/container/objectthat stores a fixed-size sequential collection of elements of the same type. The size/length of the array is determined at the time of creation.The position of the elements in the array is called as index or subscript. The first element of the array is stored at the index 0 and, the second element is at the index 1 and so on.Each element in an array is accessed using an expression which contains the name of the array followed by the index of the required element in square brackets.For example, if an array of 6 elements ...
Read MoreHow to convert integer set to int array using Java?
A collection object in Java is the one which stores references of other objects in it. The java.util package provides the classes and interfaces for collections. There are four main collection interfaces namely Set Lists, Queues, Maps.Set − The set object is a collection which stores group of elements, it grows dynamically and it does not allow duplicate elements.HashSet and LinkedHashSet are the classes that implements Set interface. You can create a Set object by implementing either of these classes.Exampleimport java.util.HashSet; public class SetExample { public static void main(String args[]) { //Instantiating the HashSet ...
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