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Important Selenium Interview Questions And Answers

Selenium Interview Question,Important Inte1) What is Selenium and what is Selenium composed of? Selenium is a  test suite of  for automated web testing.  It is composed of   Selenium IDE (Integrated Development Environment) :  It is record and run tool for recording and playing back o execution.  It is a firefox plugin. WebDriver and RC:  It […]

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Different types of Command in SQL

Different type of Command in SQL basically categories by their functionality. These functions include building database objects, manipulating objects, populating database tables with data, updating existing data in tables, deleting data, performing database queries, controlling database access, and overall database administration.The following are the different types of command. The main categories are DDL (Data Definition […]

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Selenium Wait Implicit Wait Explicit Wait Fluent Wait

Selenium Wait  Command is used in Selenium WebDriver to wait a particular amount of time defined by user.Selenium Wait can be divided into two categories Implicit wait and Explicit wait and another type of hybrid wait is Fluent Wait.In the implicit wait selenium WebDriver wait for a fixed amount of time before executing next command or […]

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Eclipse Windows, Mac, and Linux

Now just type “syso”, followed by CTRL + SPACE. Eclipse will magically fill out the full System.out.println() function call and place your cursor in between the parentheses, so that you can easily type in your desired output. This trick works exactly the same, whether you’re on a Windows, Mac, or Linux version of Eclipse. public […]

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Polymorphism in Java

Member of a class changing its behavior based on input given is called as polymorphism 1.Run time Ploymorphism 2.Compile time Polymorphism 1.Run time Ploymorphism Method overloading is run time polymorphism in method overloading call to the method is decided at the run time based on the object given. 2.Compile time polymorphism Method overriding is compile […]

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Access Modifiers in Java

In java their are 4 access modifiers public,protected,<default>,<package>,private Public-Public  is the access modifiers which shows the highest visibility any class member declare as public can be visible 1.Within the class. 2.Within the package. 3.Outside the package. Protected-Any class member declare as protected are visible 1.Within the class. 2.Within the package. 3.Out side the package but […]

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Java Autoboxing and Unboxing with examples

Java 1.5 introduced a special feature of auto conversion of primitive types to the corresponding Wrapper class and vice versa. Autoboxing: Automatic conversion of primitive types to the object of their corresponding wrapper classes is known as autoboxing. For example – conversion of int to Integer, long to Long, double to Double etc. Unboxing: It […]

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SQL Insert Command Different Types

SQL Insert Command Different Types Different type of SQL command are used to perform same operation  need to use at different time as per our requirement.We can use them in the next example  we are going to create a table name as TEST and heaving the following command. Create Table command CREATE TABLE TEST(ID NUMBER(10),NAME […]

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Alter Command For Add Renaming Column

Alter table command is used to modify the table structure we can add a column or modify column. Syntax ALTER TABLE table_name ADD column_name datatype eg-alter table test add mobile number(10); Modifying a column Syntax ALTER TABLE “table_name” RENAME COLUMN “column 1” TO “column 2”;

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Alter table Modify

This command is used to alter table existing data type.By giving this command we can change the parameter of  an  table. ALTER TABLE table_name  MODIFY column_name column_type; alter table emp modify id number(20);

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