![Objects
• A Java object is a combination of data. Objects
are created from templates known as classes.
public class Puppy {
public Puppy(String name) {
// This constructor has one parameter, name.
System.out.println("Passed Name is :" + name );
}
public static void main(String []args) {
Puppy myPuppy = new Puppy( "tommy" );
}
}](https://image.slidesharecdn.com/basiconlinejavacourse-brainsmartlabs-190108112200/85/Basic-online-java-course-Brainsmartlabs-12-320.jpg)
![Methods
• A method is a set of code simply by utilizing the
method's name.
public class Numbers {
public static void main(String[] args) {
System.out.print("Square root of 4 is: " +
Math.sqrt(4));
}
}](https://image.slidesharecdn.com/basiconlinejavacourse-brainsmartlabs-190108112200/85/Basic-online-java-course-Brainsmartlabs-14-320.jpg)
![Constructor
• A constructor is a block of code related to a
program that's called when an instance of an
object is created.
public class Myclass{
...
MyClass(){
this("BeginnersBook.com");
}
MyClass(Sting s, int age){
this.name=s;
this.age=age;
}
public static void main(String args args[]){
MyClass obj=new MyClass():
...
}
}](https://image.slidesharecdn.com/basiconlinejavacourse-brainsmartlabs-190108112200/85/Basic-online-java-course-Brainsmartlabs-18-320.jpg)
Basic online java course - Brainsmartlabs
- 1. Basic Online Java Course →Brainsmartlabs Follow us @ https://www.brainsmartlabs.com/free-basics
- 2. Index • Introduction to Java course • Basic concepts in Java course • Types of Java applications • Java platforms • Where is Java being used? • Is java worth to study? • Introduction to Brainsmartlabs • Why choose java course in Brainsmartlabs? • Contact us
- 3. Introduction to Brainsmartlabs Brainsmartlabs is the one-stop online portal for IT beginners to learn basics and advanced Java and SQL free online course. We are providing a unique way of teaching Core Java, SQL, and advanced SQL with examples. The Brainsmartlabs is the best platform to learn online Java and SQL online with affordable cost and practical examples.Explore through free Java courses online with brainsmartlabs and learn Java programming and improve your career with free basic Java and SQL courses. Join now today for best offer.
- 4. Introduction to Java Java is a programming language developed by James Gosling and others at Sun Microsystems and released in 1995.Java is based on WORA - Write Once, Run Anywhere. It is platform independent language. Java Programs are composed to byte code that can run on any Java virtual machine (JVM). Java is one of the program language. Nowadays six million+ Java developers are there in IT companies. Java software runs on embedded devices, smart cards, ATMs, thin clients, PCs, servers, and mainframes than any other software.
- 5. What is Java Java is a programming language. Java is a high level robust secured and an object-oriented programming language. If a programmer writes a Java application, the byte code runs on operating systems (OS), including Windows, Linux, and Mac OS. Since Java has its own runtime environment (JRE) and API, it is called platform.
- 6. Types of Java applications • Standalone Application or Desktop GUI Applications • Web Application • Enterprise Application • Mobile Application • Embedded Systems • Web Servers and Application Servers • Scientific Applications
- 7. Java Platforms There are four types of Java platforms. Java SE (Java Standard Edition):It is a Java programming platform. It involves Java programming APIs such as java.lang, java.io, java.net, Java.util, java.sql, java.math etc. It also includes core topics like OOPs, String, Regex, Exception, Inner classes, Multithreading, I/O Stream, Networking, AWT, Swing, Reflection, Collection etc.
- 8. • Java EE: (Java Enterprise Edition)It is an enterprise platform which is essentially used to develop web and enterprise applications. It is built on the top of Java SE platform. It includes topics like Servlet, JSP, Web Services, EJB, JPA etc. • Java ME: (Java Micro Edition)It is a micro platform which is mainly used to develop mobile applications. • Java FX: It is used to develop rich internet applications. It uses lightweight user interface API.
- 9. Where is Java being used? • Desktop applications • Web applications • Enterprise application • Mobile • Embedded system • Smart card • Robotics • Game and etc,.
- 10. Basic Concepts in Java • Class • Objects • Identifiers • Methods • Encapsulation • Inheritance • Polymorphism • Constructors
- 11. Class • A class is used to create objects and data types and methods. public class Dog { String bread; int age; String color; Void barking(){ } Void hungry() { } Void sleeping() { } }
- 12. Objects • A Java object is a combination of data. Objects are created from templates known as classes. public class Puppy { public Puppy(String name) { // This constructor has one parameter, name. System.out.println("Passed Name is :" + name ); } public static void main(String []args) { Puppy myPuppy = new Puppy( "tommy" ); } }
- 13. Identifiers • Identifiers are the names of variables, methods, classes, packages and interfaces
- 14. Methods • A method is a set of code simply by utilizing the method's name. public class Numbers { public static void main(String[] args) { System.out.print("Square root of 4 is: " + Math.sqrt(4)); } }
- 15. Encapsulation • Encapsulation in Java is a mechanism of wrapping the data and code together as a single unit. public class Person { private String name; public String getName() { return name; } public void setName(String name) { this.name" } }
- 16. Inheritance • Inheritance is a new class derived from an existing class. A class derived from another class is called a subclass, whereas the class from which a subclass is derived is called a superclass.
- 17. Polymorphism • Polymorphism is a concept which we can perform a single action in different ways. • There are two types of polymorphism in Java: 1.compile-time polymorphism 2. Runtime polymorphism. • We can perform polymorphism in java by method overloading and method overriding.
- 18. Constructor • A constructor is a block of code related to a program that's called when an instance of an object is created. public class Myclass{ ... MyClass(){ this("BeginnersBook.com"); } MyClass(Sting s, int age){ this.name=s; this.age=age; } public static void main(String args args[]){ MyClass obj=new MyClass(): ... } }
- 19. Is Java worth to study? • Java is the most generally used programming language in the world. • Java is a good ancestor to learning other programming languages like C, C++ • Java is a mature language. • Java prepares you for several open, well-paying developer jobs. • You'll find lots of compatible, passionate programmers.
- 20. Why choose Java in Brainsmartlabs? Learning basics of java and SQL online is now easy and simple with Brainsmartlabs.com. It is an online platform for Java & SQL beginners to get expertise in the advanced core programming language. The Brainsmartlabs is one such platform which makes learning easier and affordable with any number of videos. Here you will learn the free basics first and then get into the core subject of Java and SQL language. The videos will not make you bored as we follow a unique way of teaching with assignments, DIY, tricky questions, and confusion alerts. So, get prepared for your interview and be a master before entering the programming world with Brainsmartlabs.com.
- 21. Contact Us (+91) 80958 38383 [email protected] https://www.brainsmartlabs.com/