Java Tutorial | Java Programming Tutorial | Java Basics | Java Training | Edureka
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The document outlines a comprehensive Java certification training course, covering topics such as Java introduction, features, data types, control statements, object-oriented programming, and data operations. It emphasizes the importance of Java as a versatile, platform-independent programming language widely used across various domains. Additionally, it provides installation guides and examples of Java applications, reinforcing the practicality of the language in real-world scenarios.
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https://www.edureka.co/java-j2ee-soa-trainingEDUREKA JAVA CERTIFICATION TRAINING
Arrays can be of 2 types:
Array In Java
Single Dimensional Array
Initialization: int a[] = new int[12] Initialization: int table[][] = new int[4][5];
Multi Dimensional Array
0 1 2 3 4
0
1
2
3
Width = 5
Height =4
Index in Y dimension
Index in
X dimension](https://image.slidesharecdn.com/javatutorial-edureka-170425130429/85/Java-Tutorial-Java-Programming-Tutorial-Java-Basics-Java-Training-Edureka-45-320.jpg)
Java Tutorial | Java Programming Tutorial | Java Basics | Java Training | Edureka
- 1. ` https://www.edureka.co/java-j2ee-soa-trainingEDUREKA JAVA CERTIFICATION TRAINING What is Hadoop?
- 2. ` https://www.edureka.co/java-j2ee-soa-trainingEDUREKA JAVA CERTIFICATION TRAINING Agenda For Today ➢ Java Introduction ➢ Why Learn Java? ➢ Features of Java ➢ Java Development Kit ➢ How does Java work? ➢ Data Types in Java ➢ Operators in Java ➢ Control Statements ➢ Array in Java ➢ Object Oriented Concepts in Java
- 3. ` https://www.edureka.co/java-j2ee-soa-trainingEDUREKA JAVA CERTIFICATION TRAINING Java Introduction
- 4. ` https://www.edureka.co/java-j2ee-soa-trainingEDUREKA JAVA CERTIFICATION TRAINING Java Introduction ➢ Java was created by James Gosling in 1995 for Sun Microsystems. ➢ Java is a platform independent programming language that follows the logic of “Write once, Run anywhere”. Concurrent Class Based Object Oriented
- 6. ` https://www.edureka.co/java-j2ee-soa-trainingEDUREKA JAVA CERTIFICATION TRAINING Below is the TIOBE Programming index for all the present trending programming languages: Why Learn Java?
- 7. ` https://www.edureka.co/java-j2ee-soa-trainingEDUREKA JAVA CERTIFICATION TRAINING Why Learn Java? Below are some of the domains that make use of Java: Stock market Retail Financial Services Android Big DataBanking Information Technology Scientific Research
- 8. ` https://www.edureka.co/java-j2ee-soa-trainingEDUREKA JAVA CERTIFICATION TRAINING Below are some of the technologies that make use of Java as an essential core of their functionalities: Continuous Testing Web Development Framework Android Big Data Why Learn Java?
- 10. ` https://www.edureka.co/java-j2ee-soa-trainingEDUREKA JAVA CERTIFICATION TRAINING Features of Java Simple Secure Portable Object-oriented Robust High performance Distributed Dynamic
- 11. ` https://www.edureka.co/java-j2ee-soa-trainingEDUREKA JAVA CERTIFICATION TRAINING Features of Java Simple Java was designed to be easy for professional programmer to learn and use effectively. Portable Applications written on one platform of Java can be easily ported to another platform as it is platform independent.
- 12. ` https://www.edureka.co/java-j2ee-soa-trainingEDUREKA JAVA CERTIFICATION TRAINING Features of Java Object-oriented Java is an object oriented programming language. Everything is considered to be an “object” and all operations are performed using these objects. Secure Java does not use explicit pointer and runs its programs inside the sandbox to prevents any activities from untrusted sources. {OOPS}
- 13. ` https://www.edureka.co/java-j2ee-soa-trainingEDUREKA JAVA CERTIFICATION TRAINING Features of Java Distributed Java has a feature called Remote Method Invocation (RMI) using which a program can invoke method of another program across a network and get the output. Dynamic Java programs carry with them substantial amounts of run- time type information that is used to verify and resolve accesses to objects at run time.
- 14. ` https://www.edureka.co/java-j2ee-soa-trainingEDUREKA JAVA CERTIFICATION TRAINING Features of Java Robust ➢ Java checks the code during the compilation time and run time also. ➢ Java completely takes care of memory allocation and releasing, which makes the Java program more robust. High performance Java achieves high performance through the use of bytecode which can easily translated into native machine code.
- 16. ` https://www.edureka.co/java-j2ee-soa-trainingEDUREKA JAVA CERTIFICATION TRAINING Java Development Kit JVM Java Class Libraries Other Files Development Tools JRE JDK
- 17. How does Java work?
- 18. ` https://www.edureka.co/java-j2ee-soa-trainingEDUREKA JAVA CERTIFICATION TRAINING How does Java work? Java Source (.java) Java Compiler Java Bytecode (.class) Compile-time Environment Java Bytecodes move locally or through network Class Loader Bytecode Verifier Java Class Libraries Java Interpreter Just in Time Compiler Runtime System Java Virtual Machine Run-time Environment Operating System Hardware
- 19. ` https://www.edureka.co/java-j2ee-soa-trainingEDUREKA JAVA CERTIFICATION TRAINING Installation
- 20. ` https://www.edureka.co/java-j2ee-soa-trainingEDUREKA JAVA CERTIFICATION TRAINING Java Installation Go to http://www.oracle.com/technetw ork/java/javase/downloads 1 Download Java Platform(JDK) version 8 update 121 and install on your Windows system 2
- 21. ` https://www.edureka.co/java-j2ee-soa-trainingEDUREKA JAVA CERTIFICATION TRAINING Java Installation To set the permanent path of JDK in your system: 1. Begin by going to My Computer Properties. 2. Click on Advanced system setting. 3. Click on Environment Variables option 4. Select Path variable to edit 5. Enter the path to bin folder inside JDK installed on your system.( Default path is C:Program FilesJavajdk1.8.0_121bin ) 1 2 3 4 5
- 22. ` https://www.edureka.co/java-j2ee-soa-trainingEDUREKA JAVA CERTIFICATION TRAINING Go to www.eclipse.org Download Eclipse Neon installer and install on your Windows system 1 2 Eclipse IDE Installation
- 23. Data Types in Java
- 24. ` https://www.edureka.co/java-j2ee-soa-trainingEDUREKA JAVA CERTIFICATION TRAINING Data Types in Java Integer BooleanCharacterFloat Primitive Data Type byte (1 byte) long (8 bytes) short (2 bytes) int (4 bytes) float (4 bytes) double (8 bytes) char (2 byte) bool (1 byte, but makes use of 1 bit of it) float num = 56851.3285 char ch = ‘X’ boolean b = true int num = 56
- 25. ` https://www.edureka.co/java-j2ee-soa-trainingEDUREKA JAVA CERTIFICATION TRAINING John owns a Retail Department store. John needs to create a bill with the following fields present: ➢ Invoice ID ➢ Product ID ➢ Product Cost ➢ Quantity ➢ Discount ➢ Total Price ➢ Feedback Provided ? John has no knowledge about the data types in java, Can you help John ? Data Types in Java
- 26. ` https://www.edureka.co/java-j2ee-soa-trainingEDUREKA JAVA CERTIFICATION TRAINING John owns a Retail Department store. John needs to create a bill with the following fields present: ➢ Invoice ID - Integer ➢ Product ID - Integer ➢ Product Cost - Double ➢ Quantity - Integer ➢ Discount - Double ➢ Total Price - Double ➢ Feedback Provided ? - Boolean Data Types in Java
- 27. Data Operations in Java
- 28. ` https://www.edureka.co/java-j2ee-soa-trainingEDUREKA JAVA CERTIFICATION TRAINING Data Operations in Java Data Operations Arithmetic Operators + Addition - Subtraction * Multiplication / Division % Modulus Logical Operators && And || Or ! Not Relational operators < Less than <= Less than or equal to > Greater than >= Greater than or equal to != Not equal to == Equals Unary operators ++ Increment operator -- Decrement operator
- 29. ` https://www.edureka.co/java-j2ee-soa-trainingEDUREKA JAVA CERTIFICATION TRAINING Data Operations in Java Operation Solution (Num1 + Num2) – Num3 / 5 20 Num1++ 11 Num3 >= Num1 + Num2 True Num2 == Num1 False (Num2 < Num3) && (Num1 > Num3) False !Num4 False Let us assume the following values for the variables: ➢ Num1 = 10 ➢ Num2 = 15 ➢ Num3 = 25 ➢ Num4 = true
- 30. ` https://www.edureka.co/java-j2ee-soa-trainingEDUREKA JAVA CERTIFICATION TRAINING Data Operations in Java Mathew has come to John’s store to purchase a few products. Below are the items Mathew wishes to purchase : Below are the cost of the products: At the time Mathew visited the store, there was a 10% discount on all product. Finally a service tax of 5% is applicable on all products. Can you help John compute the amount Mathew has to pay ? Product Quantity Item A 2 Item B 1 Item C 3 Product Cost Item A 200 Item B 75 Item C 500
- 32. ` https://www.edureka.co/java-j2ee-soa-trainingEDUREKA JAVA CERTIFICATION TRAINING Control Statement Control Statements Selection Statements Iteration Statements Jump Statements Switch.. CaseIf.. else while do .. While for break continue
- 33. ` https://www.edureka.co/java-j2ee-soa-trainingEDUREKA JAVA CERTIFICATION TRAINING Syntax: if (condition): statements 1 … else: statements 2 … 1. If statement Control Statement If it is raining Go Play Football Take an Umbrella START Selection Statements Iteration Statements Jump Statements Control Statement FALSE TRUE
- 34. ` https://www.edureka.co/java-j2ee-soa-trainingEDUREKA JAVA CERTIFICATION TRAINING Control Statement Syntax: switch (expression) { case value1: Statement1 break; case value2: Statement2 break; . . . Selection Statements Iteration Statements Jump Statements Control Statement Outcome of Toss START Head Tails Tom Wins default Adam Wins Invalid input FALSE TRUE FALSE TRUE 2. Switch statement
- 35. www.edureka.co/pythonEDUREKA PYTHON CERTIFICATION TRAINING LOOPS REPEAT ACTIONS SO YOU DON’T HAVE TO ... For While Repeat things until the loop condition is true Repeat things till the given number of times Control Statement Do While Execute once and then repeats things until loop condition is true
- 36. ` https://www.edureka.co/java-j2ee-soa-trainingEDUREKA JAVA CERTIFICATION TRAINING Control Statement Selection Statements Iteration Statements Jump Statements Control Statement 3. do while statement Syntax: do { statements… } while (condition is True) CHECK CONDITION EXECUTE BLOCK START repeat EXIT LOOP FALSE TRUE
- 37. ` https://www.edureka.co/java-j2ee-soa-trainingEDUREKA JAVA CERTIFICATION TRAINING Control Statement Selection Statements Iteration Statements Jump Statements Control Statement Syntax: while (condition is True) { statements… } 4. while statement CHECK CONDITION EXECUTE BLOCK START repeat EXIT LOOP FALSE TRUE
- 38. ` https://www.edureka.co/java-j2ee-soa-trainingEDUREKA JAVA CERTIFICATION TRAINING Check condition Initialization START Iteration Execute Statements Exit loop repeat FALSE TRUE Selection Statements Iteration Statements Jump Statements Control Statement 5. for statement Syntax: for(initialization; condition; iteration) { statements… } Control Statement
- 39. ` https://www.edureka.co/java-j2ee-soa-trainingEDUREKA JAVA CERTIFICATION TRAINING Selection Statements Iteration Statements Jump Statements Control Statement 6. break Syntax: break; Check Loop Condition START repeat EXIT LOOP Check Break Condition EXIT LOOP Execute Block FALSE TRUE TRUE FALSE Control Statement
- 40. ` https://www.edureka.co/java-j2ee-soa-trainingEDUREKA JAVA CERTIFICATION TRAINING Selection Statements Iteration Statements Jump Statements Control Statement Check Loop Condition START repeat EXIT LOOP Check Continue Condition Execute Block 2 7. continue TRUE FALSE FALSE TRUE Syntax: continue; Control Statement Execute Block 1
- 41. ` https://www.edureka.co/java-j2ee-soa-trainingEDUREKA JAVA CERTIFICATION TRAINING Marry is a school teacher. She conducted the final exam for the year. The exam included the following subject: Control Statement Mathematics Chemistry Physics English Computer Science Since there are multiple students, she wanted to create an automated system that will take the marks for these subjects and provide a grade for the final score. Below is the grade distribution : Percentage Grade Below 40 Poor 40-59 Average 60-79 Good 80-89 Very Good 90+ Excellent Can you help me?
- 42. Array in Java
- 43. ` https://www.edureka.co/java-j2ee-soa-trainingEDUREKA JAVA CERTIFICATION TRAINING Remember John ? Well now he has a great business running. John now has a new challenge, he has 15 invoice number that he wants to store the corresponding amount together but he doesn’t want to store them using different number. Array In Java Can you help me again?
- 44. ` https://www.edureka.co/java-j2ee-soa-trainingEDUREKA JAVA CERTIFICATION TRAINING An array is a data structure which holds the sequential elements of the same type. Arrays of any type can be created and may have one or more dimensions. Array In Java 0 1 2 3 4 126 32 230 21 200 Index Value E.g: array index 4 is holding a value of 200 Each index in the array holds a value.
- 45. ` https://www.edureka.co/java-j2ee-soa-trainingEDUREKA JAVA CERTIFICATION TRAINING Arrays can be of 2 types: Array In Java Single Dimensional Array Initialization: int a[] = new int[12] Initialization: int table[][] = new int[4][5]; Multi Dimensional Array 0 1 2 3 4 0 1 2 3 Width = 5 Height =4 Index in Y dimension Index in X dimension
- 47. ` https://www.edureka.co/java-j2ee-soa-trainingEDUREKA JAVA CERTIFICATION TRAINING Blueprint of a house can be considered as a class With the Same blueprint we can create several houses and these can be considered as objects Class and Objects ➢ Java is an object oriented and class based programming language. ➢ Object is simply a collection of data (variables) and methods (functions) that act on those data. ➢ Class is a blueprint for the object.
- 48. ` https://www.edureka.co/java-j2ee-soa-trainingEDUREKA JAVA CERTIFICATION TRAINING Super Class Child Class Inheritance ➢ Inheritance is a mechanism through which one object acquires all the properties and behaviors of parent object. ➢ To avoid code redundancy, a derived class is developed upon a base class to achieve code reusability. Amphibians Reptiles Mammals Birds Animals
- 49. ` https://www.edureka.co/java-j2ee-soa-trainingEDUREKA JAVA CERTIFICATION TRAINING Encapsulation Methods Variable Encapsulation Class ➢ Encapsulation is the mechanism that binds together code and the data it manipulates together. ➢ In encapsulation, the variables of a class will be hidden from other classes, and can be accessed only through the methods of their current class.
- 50. ` https://www.edureka.co/java-j2ee-soa-trainingEDUREKA JAVA CERTIFICATION TRAINING Polymorphism ➢ Polymorphism is the ability of a variable, function or object to take on multiple forms. ➢ Overloading of functions is achieved by the usage of polymorphism. Everyone, Draw a shape.
- 51. ` https://www.edureka.co/java-j2ee-soa-trainingEDUREKA JAVA CERTIFICATION TRAINING Abstraction ➢ Abstraction is the methodology of hiding the implementation details from the user and only providing the functionality to the users. ➢ In java, we use abstract class and interface to achieve abstraction.
- 52. Summary
- 53. ` https://www.edureka.co/java-j2ee-soa-trainingEDUREKA JAVA CERTIFICATION TRAINING Session In A Minute Java Introduction Why Learn Java Features of Java How does Java work Data Types in Java Data Operators in Java
- 54. ` https://www.edureka.co/java-j2ee-soa-trainingEDUREKA JAVA CERTIFICATION TRAINING Session In A Minute Control Statement Arrays in Java