Check out the course: https://www.duckademy.com/course/java-programming Learn Java from scratch in an easy and entertaining way. The Easy-to-follow Java programming course on Duckademy was made for beginners. In this course we start at the very basics (from zero) and go through lots of interesting exercises and analogies that will take you to an advanced level. By the end of the course you will have all the knowledge needed to move on and specialize in Java. The course is easy to follow and things are well explained. Furthermore, to make your learning easier and more enjoyable throughout the course we will develop a nostalgic, text-based fantasy game. The course is recommended to anyone who wants to learn Java. Ideal for those who are new to programming, but it can be useful and enjoyable for people who want to switch to Java from a different programming language. By the end of the course you will be able to build simple, but fully functional programs. You will also gain all the knowledge needed to specialize in Java and become a well-payed Java expert later on. Check out the course: https://www.duckademy.com/course/java-programming

1. www.duckademy.com
Learn Java in an easy and
entertaining way

2. Video 1
Getting started
with Java

3. The goal of this course is to teach you how to
program in Java. From the very basics, through
lots of exercises, you will get to an advanced level
where you can become an expert Java developer.

4. The course will cover
 Getting started with Java  Sorting elements in Java
 Control structures  Generics
 NetBeans tips and tricks  Variations for storing objects
 Basic algorithms  Handling exceptions
 Arrays  File handling
 Functions and structured
programming
 Enums
 Object-oriented programming in
Java
 Using external libraries in our
programs
 Handling dates and times

5. In this video
1. A quick intoduction to Java
2. Install NetBeans
3. Create our first project (Hello, World!)
4. Variables and types
5. Input/output and calculations
6. Conditions (if)
7. Review exercise

6. A quick intoduction
to Java

7.  In the TOP 3 (if not the most popular)
 3 billion devices run…
 Platform independency (write
once, run anywhere)
 Lots of well paying jobs
 Wide usability
Java is popular

8. Java as a tree

10. Basic computer skills

11. Basic computer skills
Programming
in Java
Basic
Java
tools

12. Basic computer skills
Programming
in Java
Basic
Java
tools
Mobile
apps
Android
Java ME
(cards, TV…)
Android has
the highest,
60% market
share among
mobile
platforms
worldwide.

13. Basic computer skills
Programming
in Java
Basic
Java
tools
Mobile
apps
Desktop
apps
Android
Games
Java ME
(cards, TV…)
Software
tools
Scientific
research

14. Basic computer skills
Programming
in Java
Basic
Java
tools
Mobile
apps
Desktop
apps
Enterprise
(”web”) apps
Android
Games
Java ME
(cards, TV…)
90% of
Fortune 500
companies
use Java.
Software
tools
Banks
Scientific
research
E-commerce
applications
Backend
services

15. Basic computer skills
Programming
in Java
Basic
Java
tools
Mobile
apps
Desktop
apps
Enterprise
(”web”) apps
Android
Games
Java ME
(cards, TV…)
Software
tools
Programming
in Java
Banks
Scientific
research
E-commerce
applications
Backend
services
Basic
Java
tools
In this course

16. Travelling to Europe...

17. Travelling to Europe...
Pretty girl!

18. Pretty girl!
Non capisco niente!
Travelling to Europe...

19. Non capisco niente!
???
Travelling to Europe...

20. Translate (compile) the message...
Compiler

21. Translate (compile) the message...
Compiler
Pretty girl!...
Bella
ragazza!

22. Translate (compile) the message...
Pretty girl!...
Bella
ragazza!
Compiler

23. Interpreter
Interpret the message...

24. Interpret the message...
I speak English AND Italian!
Interpreter

25. Interpret the message...
Pretty girl!
Interpreter

26. Interpret the message...
Lui dice: „Bella ragazza”.
Pretty girl!
Interpreter

27. Interpret the message...
Lui dice: „Bella ragazza”.
Pretty girl!
Interpreter

28. Java style (platform independence)

29. Java style (platform independence)
Compiler

30. Java style (platform independence)
Pretty
girl!
Compiler

31. Java style (platform independence)
Pretty
girl!
…
Compiler

32. Java style (platform independence)
Pretty
girl!
…
Bela
knabino!
Compiler

33. Java style (platform independence)
Interpreter
Compiler
I speak Italian
AND Esperanto.
I speak Finnish
AND Esperanto.
Pretty
girl!
…
Bela
knabino!

34. Java style (platform independence)
Interpreter
Compiler
Lui dice:
„Bella ragazza”
Pretty
girl!
…
Bela
knabino!

35. Java style (platform independence)
Interpreter
Compiler
Pretty
girl!
…
Bela
knabino!
Lui dice:
„Bella ragazza”

36. Java style (platform independence)
Interpreter
Compiler
Hän sanoo:
„Kaunis tyttö”
Pretty
girl!
…
Bela
knabino!
Lui dice:
„Bella ragazza”

37. Java style (platform independence)
Interpreter
Compiler
Hän sanoo:
„Kaunis tyttö”
Pretty
girl!
…
Bela
knabino!
Lui dice:
„Bella ragazza”

38. Java style (platform independence)
Interpreter
Pretty
girl!
…
Bela
knabino!
Byte code
Compiler
Hän sanoo:
„Kaunis tyttö”
Lui dice:
„Bella ragazza”

39. Java style (platform independence)
Interpreter
Pretty
girl!
…
Bela
knabino!
Byte code
Hän sanoo:
„Kaunis tyttö”
Lui dice:
„Bella ragazza”
Compiler
Virtual
machine
Virtual
machine

40. What do we need to start
Java programming?

41. What do we need to start
Java programming?
JRE

42. What do we need to start
Java programming?
JRE
IDE

43. What do we need to start
Java programming?
JRE
IDE
JDK

44. What do we need to start
Java programming?
JRE
IDE
JDK
JVM

45. What do we need to start
Java programming?
JRE
IDE
JDK
JVM
NetBeans

46. What do we need to start
Java programming?
JRE
IDE
JDK
JVM
NetBeans
Eclipse

47. Java Development Kit
(JDK)
Java Runtime Environment
(JRE)
Java Virtual
Machine
(JVM)
Integrated Development
Environment
(IDE)
NetBeans Eclipse

48. Variables and types

49. Variables and types

50. Variables and types
Shirts T-shirts

51. Variables and types
Underwear
Shirts T-shirts

52. Java variables and types

53. Java variables and types
All types

54. Java variables and types
All typesPrimitive types

55. Java variables and types
All typesPrimitive types Classes

56. Java variables and types
All typesPrimitive types ClassesNumbers

57. Java variables and types
All typesPrimitive types ClassesNumbers
Char

58. Java variables and types
All typesPrimitive types ClassesNumbers
Char
Boolean

59. Java variables and types
All typesPrimitive types ClassesNumbers
Char
Boolean
Integer

60. Java variables and types
All typesPrimitive types ClassesNumbers
Char
Boolean
Integer Real

61. Java variables and types
All typesPrimitive types ClassesNumbers
Char
Boolean
Integer Real
Byte

62. Java variables and types
All typesPrimitive types ClassesNumbers
Char
Boolean
Integer Real
ByteShort

63. Java variables and types
All typesPrimitive types ClassesNumbers
Char
Boolean
Integer Real
ByteShort
Long

64. Java variables and types
All typesPrimitive types ClassesNumbers
Char
Boolean
Integer Real
ByteShort
LongInt

65. Java variables and types
All typesPrimitive types ClassesNumbers
Char
Boolean
Integer Real
ByteShort
LongInt
Float

66. Java variables and types
All typesPrimitive types ClassesNumbers
Char
Boolean
Integer Real
Long
ByteShort Float
DoubleInt

67. Replace the value of 2 variables!
 Don’t write numbers!
 Don’t change the existing lines, only include new ones!
public class Replace {
public static void main(String[] args) {
int first = 7;
int second = 19;
// write something here!!!
System.out.println(”first=”+first+”
second=”+second);
}
}
Value replacing exercise

68. Glass exercise

69. Glass exercise
?

70. Glass exercise

71. Glass exercise

72. Glass exercise

73. Glass exercise

74. Glass exercise

75. Glass exercise

76. Input/output and
calculations

77. Temperature exercise
 Write a program that reads in an integer value
denoting a temperature value in Celsius grade.
 Calculate and print the Fahrenheit grade!
 What do we not know?
– How to read in a number
– How to make calculations
°F =
9
5
°C + 32

78. Boiling exercise
 Write a program that reads in a temperature value
(in Celsius) and prints out if the water is boiling
at the specified temperature!
 What do we not know?
– How to run a part of code based on a condition
100 °C

79. Boiling and freezing exercise
 Write a program that reads in a temperature value (in
Celsius), and prints out whether the water is boiling or
freezing or at normal state at the specified
temperature!
 What do we not know?
– Joining if’s
0 °C 100 °C

80. Logic operators

81. Logic operators
&&
||
!

82. True, if both conditions are true.
Logic operators
&&
||
!

83. True, if both conditions are true.
True, if either condition is true.
Logic operators
&&
||
!

84. True, if both conditions are true.
True, if either condition is true.
Negate:
Logic operators
&&
||
! makes true out of false

85. True, if both conditions are true.
True, if either condition is true.
Negate:
Logic operators
&&
||
!
and false
makes true out of false
out of true.

86. Conditions (if)

87. Multiple if-else if-else if-…-else

88. Multiple if-else if-else if-…-else
 Let’s imagine a sausage!
 The sausage will represent all the values.

89. Multiple if-else if-else if-…-else
 Let’s imagine a sausage!
 The sausage will represent all the values.

90. Multiple if-else if-else if-…-else
 Let’s imagine a sausage!
 The sausage will represent all the values.

91. Multiple if-else if-else if-…-else
 Let’s imagine a sausage!
 The sausage will represent all the values.

92. Multiple if-else if-else if-…-else
 Let’s imagine a sausage!
 The sausage will represent all the values.

93. Multiple if-else if-else if-…-else
 Let’s imagine a sausage!
 The sausage will represent all the values.

94. Review exercise

95. Fighting exercise
 Write a program with which you
can simulate one round of fight
between you and a monster.
 First we read in the attributes
of each of you.
 Then we play one round of the
fight.
Peter Tikos

96. Fighting rules
Attributes:
 Attack Points (AP)
 Defense Points (DP)
 Damage (D)
 Life Points (LP)
Fight (one round):
 Attacker is chosen randomly (coin toss)
 Attack Points + 2 Dice ? Enemy’s Defense Points
> : Attacker hits defender, so life points decreased by damage
<= : Miss

97. Let’s fight!
 First let’s generate random numbers!

98. Let’s fight!
 First let’s generate random numbers!
 Then we are ready to fight 

99. What’s next
 Choose one from many (switch)
 Repeat it! (the loops)
– While
– Do-while
– For
 Controlling loops
– Break
– Continue
 Multiple loops one inside the other
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100. End of video 1
Next video:
Control structures
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