From June 1, 2021 Google will charge for the online photo and video storage. From June 1, 2021 Google is discontinuing its free services and will charge for the online photo and video storage. Google will be charged for Google Photo’s cloud storage. If you store your photos and data on Google Drive…
Category: IT & Software
Classes and Interfaces in the collections?
Classes and Interfaces available in collections Following are the Classes and Interfaces that are available in Collections: Classes: following are the classes of collections, Lists Array List Vector Linked List Interfaces: following are the interface of collections, Collection List Set Map Sorted Set Sorted Map Queue Maps: Hash Map Hash Table TreeMap Linked Hashed Map…
Want to know concept of Interface and abstract class in Java?
Interface and abstract class in Java Interface in Java Java does not support the multiple inheritance so, to overcome with this java gives concept of interface. Interface is a template that has only declaration of methods. It means when a class implement the interface then method implementation is done in that class. For example, consider…
Overloading in Java?
Overloading in Java When different methods have the same name but different signature is known as overloading in java. It means parameter have different number of inputs. So, overloading is defined as: Same method name Different argument types May have different return types For example, consider the following code. In this code add() method has…
Access specifiers in Java
Discuss the access specifiers in Java and their types. To define the access scope of class, method, & variables, access specifiers are used in java. Following are the four access specifiers in java: Public: When apply on variables, methods and classes then can be accessible to everywhere means accessible by any method and class. Protected:…
Top 40 Important Java Interview Questions and Answers
Top 40 Important Java Interview Questions and Answers Here we will discuss about Top 40 Important Java Interview Questions and answers that beginners needs to know. Java is an object oriented programming language and very useful. So there lots and questions that are ask in various interviews. So dear readers here we have design various…
How to write 1st Java Program (Hello World Program in Java)?
Write 1st Java Program (Hello World Program) Following is the way to write java program Hello World in java- //HelloProgram.java class HelloProgram{ public static void main(String []args) { System.out.println(“Hello World!”); } } Output Hello World! Download JDK Download JRE Must Read – Top 40+ Important Java Interview Questions and answers
Structure for Java Program which will clear your all doubt (1st Java Program)
Structure for Java Program A basic java program (Hello program) is divided into following parts: import java.io.*; // Package class Hello{ // class name and opening curly brace public static void main(String args[]) // Main Method { // opening curly brace // comment or /* comment */ // comment System.out.println(“Hello World”); …
Where is the source code of java written (Java Program Editor)?
Java Program Editor / Source Code Editor Following are the few most popular text-editors where one can write the Java’s source code. Notepad / Notepad: basically used by the new Java’s programmers or for simple java programs. Eclipse: This is a very good Java IDE for making Java program, it is open-source and free. Netbean:…