In This Presentation You See a brief history of java and all major topic like packege,util class and More. Enjoy........

1. Introduction to Java Tushar Chauhan Osum Leader C.U.Shah College Of Engineering & Technology, Wadhwan City

3. A little bit of history

4. Java performance

5. Java sintax

6. Java packages

7. Java applications

8. Demo

9. Where and how to learn Java

10. What is Java???

11. An exotic island...? Friendly people, spicy food, beautiful beaches

12. An IT Brand?

14. The language itself takes much of its syntax from C and C + + but has a simpler object model and eliminates low-level tools.

15. It is platform independent. Early implementations of Java had the slogan: "write once, run anywhere"

16. It has a system of automatic memory management.

17. A programming language

18. A platform

19. And where is Java? Java is everywhere...

20. Where is Java? It's here...

21. Where is Java? And here...

22. Where is Java? And here...

23. A little bit of history

27. The term "Java" was coined in a coffee store frequented by members of the team.

28. It is unclear if it is an acronym or not, some hypotheses suggest that it could be the initials of its creators: J ames Gosling, A rthur V an Hoff, and A ndy Bechtolsheim. Other advocates of " J ust A nother V ague A cronym.

29. The most accepted hypothesis is that Java is named after a type of coffee available in the coffee store.

30. Java Architecture

32. Then, the code is compiled into a .Class file. A .Class does not contain native code for a type of processor, instead it contains bytecodes.

33. Finally, the application is interpreted by the Java virtual machine, transforming the bytecode to native code at runtime.

35. Java platform Java Card Java SE Java EE Java ME Java FX

36. Java platform D:y Presentationnijoyo Java Presentationmgava platform.gif

38. Distributed

39. Simple

40. Multithread

41. Safe

42. Platform independent

44. Simple: No pointers, no garbage collector

45. Multithreading

46. Safe: restrictions on access to devices directly (pointers)

47. Java syntax

50. It is not a primitive type.

52. Example with arithmetic operators int i=2+3; // i equals 5 i=i+1; //i equals 6 i=6*2; //i equals 12 i=2+5*2%8; //i equals 4

53. Example with posfix and unary operators int i=5; // i equals 5 System.out.println(i); //print:5 System.out.println(++i); //print:6 System.out.println(i++); //print:6 System.out.println(i); //print:7

54. Control sentences: if if(expr){ .... } if(expr) sentencia; if(expr){ .... } else { .... }

55. Control sentences: switch Switch (num){ case num1:...break; case num2:...break; default:...break; }

56. Control sentences: while and do-while while (expr){ .... } do { .... }while(expr);

57. Control sentences: for for (exprInic; stopCond; nextStep){ .... } for (int i=0; i<10; i++) { System.out.println(i); } //print numbers from 0 to 9

58. Java Packages

60. Each of these worlds are composed of objects .

61. Objects communicate through messages.

62. Therefore, an object-oriented program is nothing more than a configuration of a set of objects and messages sent between them.

63. The &quot;box&quot; that holds the description of all objects of the same type is what is known as a class.

64. In turn, the classes with similar purposes can be grouped into packages.

65. The program execution begins at the &quot;main&quot; method of a class.

66. Package example

68. Each class must be found within a package.

69. The file name of implementing class must match the name of the class.

70. The package structure should match the directory structure. Eg: edu.sun.Ejemplo would be mapped to the file ... / edu / sun / Ejemplo.java

71. Class structure Package person; Import java.util.Vector; public class Person { private Vector partners ; public Person() { this . partners = new Vector(); } public Person(Vector friends) { this . partners = friends; } public void addPartners(Person aPerson){ this . partners .add(aPerson); } }

73. It includes, Date (date), Dictionary (dictionary), Random (random numbers) and Stack (stack FIFO).

75. Byte

76. Character

77. Double

78. Float

79. Integer

80. Long

81. Short

82. Void

87. Getting a value as an “int”: intValue()

91. String(char[])

96. out: &quot;standard” output stream. Usually, is the message window

100. The Java class libraries organized as a collection of packages.

101. A significant number of demonstration programs.

104. Develop network-enabled Java Beans components.

106. CDDL and GPL 2 License.

107. www.netbeans.org

110. Questions

112. Join Java groups inside osum and participate in the communities

113. Build your own Java programs

116. Sun Certified Web Component Developer for Java EE

117. Sun Certified Mobile Application Developer for Java ME

119. Discounted exams fees for academic developers – only US$40 worldwide Fast Track Your Career with Sun!

120. Introduction to Java Tushar Chauhan [email_address] CCET, Wadhwan City.