2020-07-07 07:15
As you know that the purpose of a method is to exhibit a behavior. For example, when you apply a brake in any vehicle, it stops the vehicle. The method brake() represents the behavior of sto… Read More
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Scientech Easy provides online tutorials for Core Java, Selenium Automation Testing, Java Programming, Interview Questions, and Technology update.
2020-07-07 07:02
Polymorphism in OOPs
Polymorphism in java is one of the core concepts of object-oriented programming language. The word polymorphism is derived from two Greek words: poly and morphs.The wor… Read More
2020-07-06 04:22
Java Thread sleep | Sometimes we need to make a thread sleep for particular period of time. For this, we use sleep() method in Java program.
The sleep() method is a static method provided by… Read More
2020-07-05 05:50
In this tutorial, we will learn a very important chapter Inheritance in Java. Inheritance is one of the main pillars of OOPs (Object Oriented Programming) concept. It is a techniqu… Read More
2020-07-05 03:45
Encapsulation in Java
The process of binding data and corresponding methods (behavior) together into a single unit is called encapsulation in Java.
In other words, encapsulation is a program… Read More
2020-07-04 07:31
Getter method in Java
A method which is used to retrieve/get the value of a variable or return the value of the private member variable is called getter method in Java. This method is… Read More
2020-07-03 07:30
Navigation commands are commands that are used to perform different operations such as backward, forward, refresh, wait, etc in the browser’s history.These commands can be accessed by… Read More
2020-07-03 06:38
In this tutorial, we will learn about the most frequently used Selenium WebDriver commands for performing different operations in selenium tests.
Since we are using Selenium WebDriver with J… Read More
2020-07-03 04:58
What Is Object-Oriented Programming?
Object-oriented programming (OOP) is a programming methodology or paradigm (model) to design a computer program using classes and objects. It is t… Read More
2020-07-03 04:40
In this tutorial, we will learn Selenium WebDriver that is the successor of Selenium RC. In the earlier version of selenium, we needed Selenium RC server which must be started before ex… Read More
2020-07-03 04:35
In this tutorial, we will learn final keyword in java. We will discuss three places such as variable, method, and class where the final keyword can be used.
The final keyword declared with v… Read More
2020-07-02 06:16
Select is a class provided by Selenium which is used to work with a dropdown element. The select class allows us to select an element from the drop-down and lists that are created with the H… Read More
2020-07-02 01:54
General Science Syllabus/Topics | There are three subjects like Physics, Chemistry, and Biology (life science) which comes in General Science. All these three subjects are very important and… Read More
2020-07-01 20:29
Checkboxes are widely used in web applications, mostly in those situations where the user needs to choose one or more available options.
For example, when you fill up any company registrat… Read More
2020-07-01 19:48
In the previous tutorial, we have known that select class in Selenium is used to interact with dropdown and lists that are created with the element. We have also familiarized select class m… Read More
2020-06-30 03:35
In this tutorial, we will learn final keyword in java. We will discuss three places where the final keyword can be used with variables, methods, and classes.
The final keyword declared wit… Read More
2020-06-30 03:20
Static Nested Class in Java
When an inner class is defined with static modifier inside the body of another class, it is known as a static nested class in Java. It is also considered as a n… Read More
2020-06-30 03:10
Anonymous Inner Class in Java
An anonymous inner class is an inner class which is declared without any class name at all. In other words, a nameless inner class is called an anonymous… Read More
2020-06-30 03:00
Method Local Inner Class in Java
An inner class which is declared inside a method of the outer class is called method local inner class in Java. Its scope is limited to the block of a… Read More
2020-06-30 02:20
Member Inner Class in Java
A non-static class that is declared inside a class but outside the method is known as member inner class in Java or regular inner class. It can be declared as pu… Read More
2020-06-29 14:26
In this tutorial, we are going to discuss packages in Java with example programs. In small projects, all the java files have unique names. So, it is not difficult to put them in a single fol… Read More
2020-06-29 10:36
We know that data types in Java have been categorized into primitive and non-primitive data types.
Primitive data types are those data types that are used by programmers when creating variab… Read More
2020-06-29 09:13
➲ In Java, all data type for primitive type variables is stored on the stack.
➲ For reference data types, the stack holds a pointer to the object on the heap. When setting a re… Read More
2020-06-29 07:53
An object which has no reference variable is called anonymous object in Java. Anonymous means nameless. If you want to create only one object in a class then the anonymous object is a… Read More
2020-06-29 06:25
Life cycle of object in Java | In the previous tutorial, we learned declaration and initialization of object in java. Now we will discuss life cycle of object in java.
We should know how o… Read More
2020-06-29 05:23
In the previous tutorial, you have learned how to create an object in java. In this tutorial, we are going to learn Java object declaration and initialization with example programs.
We will… Read More
2020-06-29 03:00
How to create Object in Java | In the previous tutorial, we have known a class is a model for creating objects. Creating an object means allocating memory to store the data of variables temp… Read More
2020-06-27 03:43
Thread priority in Java is a number assigned to a thread that is used by Thread scheduler to decide which thread should be allowed to execute.
In Java, each thread is assigned a different pr… Read More
2020-06-25 11:54
Thread scheduler in Java is the component of JVM that determines the execution order of multiple threads on a single processor (CPU).
It decides the order in which threads should run. This p… Read More
2020-06-25 02:59
Creating Multiple Threads in Java | In the previous all thread programs, we have used only two threads: main thread, and one new thread (known as child thread).
Now, we will learn methods of… Read More
2020-06-24 06:37
Data Types in Java
We know that we need a variable to store data. Internally, a variable represents a memory location where data is stored. When we use a variable in java program, we have… Read More
2020-06-24 06:20
Arguments in Java
An argument in Java is an actual value that is passed to a method when the method is called. Whenever any particular method is called during the execution of the pro… Read More
2020-06-24 05:25
Parameter passing in Java
In the previous tutorial, we have known that the basic method of passing parameters in java is call-by-value.
It means that if a method modifies the values of pa… Read More
2020-06-24 04:35
Return type in Java
In Java, Return is a keyword which is used to exit from the method only with or without a value. Every method is declared with a return type and it is mandatory for Java… Read More
2020-06-23 06:29
So far we have seen the members of the class are variables, methods, constructors, and initializer blocks. But it is also possible to have a class or an interface as a member of a class… Read More
2020-06-23 02:56
Life Cycle of Thread in Java is basically state transitions of a thread that starts from its birth and ends on its death.
When an instance of a thread is created and is executed by calling s… Read More
2020-06-19 17:33
Creating threads in Java | We know that every Java program has at least one thread called main thread. When a program starts, main thread starts running immediately.
Apart from this main thr… Read More
2020-06-18 04:05
In Java, Thread is a predefined class declared in java.lang default package. Each thread in Java is created and controlled by a unique object of the Thread class.
An object of thread control… Read More
2020-06-18 01:09
Static Initialization Block in Java
Static block in Java is the group of statements that gets executed only once when the class is loaded into the memory by Java ClassLoader. It is also k… Read More
2020-06-17 07:09
Static Method in Java
A static method in Java is a method that is declared with a keyword ‘static’. It is also known as a class method because it belongs to a class rather than… Read More
2020-06-17 04:58
Generally, when we create a class, we don’t know anything until we create an object of that class using the new keyword. Once the object is created at that time, data storage is creat… Read More
2020-06-16 06:30
What is Block in Java?
A block in Java is a set of code enclosed within curly braces { } within any class, method, or constructor. It begins with an opening brace ( { ) and ends with an cl… Read More
![Main Method In Java | Public Static Void Main(String[] Args)](https://cdn.blogarama.com/images/posts_thumbs_site_id/13515/1351486-2571286108.w320.jpg "Main Method In Java | Public Static Void Main(String[] Args)")
2020-06-13 06:50
Main method in Java
A main() method is an entry point to start the execution of a program. Every Java application has at least one class and at least one main method.Normally, an applicati… Read More
2020-06-13 06:19
Copy Constructor in Java
A constructor which is used to copy the data of one object to another object of the same class type is called copy constructor in Java. It is called when a single… Read More
2020-06-13 02:38
Modifiers in Java
A modifier is a keyword that we add to those definitions to change their meaning. In other words, It limits the visibility of the classes, fields, constructors or method… Read More
2020-06-12 05:20
What is Thread in Java?
A thread in Java simply represents a single independent path of execution of a group of statements. When we write a group of statements in a program, these statements… Read More
2020-06-12 01:11
Constructor Chaining in Java
Constructor chaining in Java is a technique of calling one constructor from another constructor using this and super keyword.The keyword “this” is u… Read More
2020-06-05 04:36
Errors in Java occur when a programmer violates the rules of Java programming language. It might be due to programmer’s typing mistakes while developing a program. It may produce incor… Read More
2020-06-03 06:04
Constructor Overloading in Java
Constructor overloading in Java means to define multiple constructors but each one must have a different signature. It is a technique in Java in which a cl… Read More
2020-06-02 10:19
Constructor in Java
A constructor in java is similar to a method that is used to initialize objects of a class through a new operator.
In other words, a constructor is basically a special… Read More
2020-06-01 22:36
Methods in Java
Methods in Java are the building block of a Java application. In Java, a method is a set of code used to write the logic of the applications which perform some speci… Read More
2020-05-30 04:19
In the earlier tutorials, we have known that all exceptions and errors in Java are represented by classes. All these classes are organized as subclasses in a hierarchy under superclass calle… Read More
2020-05-27 03:18
Java 2, version 1.4 added a new feature chained exceptions. The chained exceptions feature relates one exception with another exception. The second exception explains the cause of the first… Read More
2020-05-25 04:20
In earlier tutorials, we have seen predefined exceptions provided by the Java platform. These predefined exceptions are used to handle errors occurring in the program.
But sometimes the pro… Read More
2020-05-24 04:05
In Java, sometimes a method may throw an exception in a program but cannot handle it due to not have an appropriate exception handling mechanism.
In such a case, the programmer has to throw… Read More
2020-05-22 13:22
Variables in Java
Variable is a container which holds the value during the execution of Java program. In other words, Variable is the name of the memory location reserved for storing value… Read More
2020-05-22 03:43
You will have seen earlier in all the programs of exception handling that Java runtime system was responsible for identifying exception class, creating its object, and throwing that object… Read More
2020-05-20 06:18
In this tutorial, we will discuss top encapsulation program in java with step by step explanation. In the previous tutorial, we have learned about encapsulation, data hiding, and tightly en… Read More
2020-05-18 04:46
Abstraction in Java
Abstraction is another important OOPs principle in Java. It is the process of hiding internal implementation details from the user and providing only necessary function… Read More
2020-05-18 03:49
In the previous tutorial, we have known that finally block always gets executed, whether the programmer has handled exception in catch block thrown by corresponding try block or not.
The fi… Read More
2020-05-16 04:08
In the last tutorial, we learned different cases of the control flow of try catch finally block in Java with example programs. Now, two famous questions arise in the topic “try catch f… Read More
2020-05-13 11:49
Here, I have listed some popular Selenium interview questions asked in Wipro Technologies that must be known best possible answers to these questions before going to interview. These kinds o… Read More
2020-05-09 03:10
In this tutorial, we have listed sample of Selenium interview questions asked in companies that have been recently asked in different companies from freshers and 2 to 3 years experienced can… Read More
2020-05-08 07:13
The operator which is used to shift the bit patterns right or left is called shift operator. The general form of shift expression is as follows: left_operan… Read More
2020-05-08 06:48
Logical operators in java are those operators which are used to form compound conditions by combining two or more conditions or relations. Sometimes in Java, these operators are also called… Read More
2020-05-08 06:43
An operator which is used to store a value into a particular variable is called assignment operator in java. In any programming language, an assignment operator is the most commonly used to… Read More
2020-05-08 06:15
An operator that acts on individual bits (0 or 1) of the operands is called bitwise operator in java. It acts only integer data types such as byte, short, int, and long. Bitwise operators in… Read More
2020-05-08 06:15
An operator that acts on individual bits (0 or 1) of the operands is called bitwise operator in java. It acts only integer data types such as byte, short, int, and long. Bitwise operators i… Read More
2020-05-08 05:52
The operator that acts on a single operand is called unary operator. A unary operator uses a single variable. There are three types of unary operators in java. They are as follows:1. Unary m… Read More
2020-05-07 11:02
String Class Constructor in Java
The string class supports several types of constructors in Java APIs. The most commonly used constructors of String class are as follows:
1. String()… Read More
2020-05-07 09:31
StringBuffer Class in Java
You have learned in the previous tutorial that string is fixed-length, immutable and cannot be modified. i.e, Once we create a String object, we cannot chan… Read More
2020-05-07 07:32
Java Substring
Substring in Java is a subset of the main string specified by start and end indices. We can extract a substring using substring() method. String class provides two forms of… Read More
2020-05-07 03:42
String Concatenation in Java
In general, Java does not allow operators to be applied to string objects except + operator which concatenates multiple strings and forms a new string.
A stri… Read More
2020-05-06 12:38
Why String is Immutable in Java?
String class in Java is immutable. The meaning of immutable is unchangeable or unmodifiable. i.e. Once we create a string object with value, you are n… Read More
2020-05-06 12:34
A string is the most important topic in all topics of Java. It is also a favorite topic for any interviewer. Whenever you will go for any technical interview, the interviewer always asks q… Read More
2020-05-06 12:27
A string is a very important topic in the world of programming languages. In almost all the programming languages such as C, C++, Java, Python, or in any application whether it is Java-based… Read More
2020-05-06 06:20
String Compare in Java
In Java, the two strings can be compared on the basis of content and reference. We cannot compare the two string by using relational operators like >, =,
Basical… Read More
2020-05-04 04:30
In this tutorial, we will learn Set in Java with example programs. The set is an interface that was introduced in Java 1.2 version.
Java Set is a kind of an unordered collection of elemen… Read More
2020-05-04 03:45
In the last tutorial, we have discussed Java LinkedList and its various methods. In this tutorial, we will learn how to iterate LinkedList in Java.
Before going on this topic, I will recom… Read More
2020-05-03 23:03
The collection framework provides two general-purpose Set implementations: HashSet and TreeSet. In this tutorial, we will learn HashSet in Java with example and programs in a very simple wa… Read More
2020-05-03 22:09
In this tutorial, we will learn how to iterate Set in Java. Basically, Iteration means repeating the same operation multiple times.
Set interface does not provide any get() method like List… Read More
2020-05-02 22:04
In the previous tutorial, we have learned the basics of LinkedList in Java. If you have any doubt in LinkedList chapter, you first visit this chapter and understand basics topics in easy wa… Read More
2020-05-02 02:48
Java LinkedList
➲ Java LinkedList is a linear data structure that uses a doubly linked list to store the elements. A doubly linked list consists of a group of nodes that together re… Read More
2020-05-02 01:54
In this tutorial, we will learn various types of Java Vector example programs using Enumeration, Iterator, and ListIterator.
We will also learn some important programs related to methods o… Read More
2020-05-01 22:26
Vector in Java
Vector class in Java was introduced in JDK 1.0. It is present in Java.util package. It is a dynamically resizable array (growable array) which means it can grow or shr… Read More
2020-05-01 02:30
In this tutorial, we have listed the various types of programs on ArrayList in Java in an easy way and step by step. All example programs discussed here are important for beginners to… Read More
2020-04-30 22:40
In this tutorial, we will learn how to store user-defined class objects in Java ArrayList in an easy way and step by step.
In the previous ArrayList tutorial, we have learned that Arra… Read More
2020-03-14 08:17
In the previous tutorial so far, we learned single try-catch block, multiple catch blocks in a java program.Now we will learn nesting of multiple try-catch blocks inside one try block in a p… Read More
2020-03-14 04:50
In Java, a single try block can have multiple catch blocks. When statements in a single try block generate multiple exceptions, we require multiple catch blocks to handle different types of… Read More
2020-03-07 10:40
There are mainly two kinds of Listeners. First is WebDriver Listeners and the second is TestNG Listeners. In this tutorial, we will learn TestNG listeners and their different types of liste… Read More
2020-02-28 15:05
In the previous tutorial, we have known that when an error occurs within a method of program, the method creates an exception object and hand over it to the runtime system (JVM).The process… Read More
2020-02-26 06:45
In the previous tutorial, we have familiarized that there are two types of exceptions in java: First is predefined exceptions and second user-defined exceptions.The predefined exceptions ar… Read More
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