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Object-Oriented Programming 2

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Warawut

Basic Programming Concepts

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CHAPTER 2 BASIC PROGRAMMING CONCEPTS Mr.Warawut Khangkhan e-Mail: awarawut@hotmail.com Social Media: www.facebook.com/AjWarawut
Mr.Warawut Khangkhan Chapter 2 Basic Programming Concepts Basic Programming Concepts PROGRAMMING IN STRUCTURED JAVA 2
Mr.Warawut Chapter 1 Java & OOP Khangkhan 3
Mr.Warawut Khangkhan Chapter 2 Basic Programming Concepts Chapter 2 Basic Programming Concepts VARIABLE DATA & 4
JAVA Mr.Warawut Khangkhan F F a-z, A-Z, _, $ F F Chapter 2 Basic Programming Concepts a-z, A-Z, _, $ F F F F ˈ (Case Sensitive) F (Reserved Word) Literal Words (True, False, Null) 5
Mr.Warawut Chapter 2 Basic Programming Concepts Khangkhan 6 F RESERVED WORD
(DECLARATION) Mr.Warawut Khangkhan ˈ F F (Data Type) F Chapter 2 Basic Programming Concepts dataType varName [= value]; dataType = F varName = value = F 7
F Mr.Warawut Khangkhan String name; float score; Chapter 2 Basic Programming Concepts char grade; String name = “Warawut”; float score = 85.5f; char grade = ‘A’; 8
Mr.Warawut Khangkhan Chapter 2 Basic Programming Concepts Basic Programming Concepts DATA TYPE 9
F (DATA TYPE) Mr.Warawut Khangkhan Primitive Data Type - F F F Chapter 2 Basic Programming Concepts Class Type – Interface Array Type – F ˈ F F F ˈ 10
F (PRIMITIVE DATA TYPE) Mr.Warawut Khangkhan F (Integer) F Chapter 2 Basic Programming Concepts (Floating Point) F (Character) F F (Boolean) 11
INTEGER TYPE Mr.Warawut Khangkhan Data Type Size Range (Byte) Chapter 2 Basic Programming Concepts byte 1 -128 to +127 short 2 -32,768 to +32,767 int 4 -2,147,483,648 to +2,147,483,647 long 8 -9,223,372,036,854,775,808 to +9,223,372,036,854,775,807 12
EX. INTEGER TYPE Mr.Warawut Khangkhan byte A = 65; short B = 32767; Chapter 2 Basic Programming Concepts int C = 2147286444; long D = 21472864448L; long E = 21472864438l; 13
FLOATING POINT TYPE Mr.Warawut Khangkhan Data Type Size Range (Byte) Chapter 2 Basic Programming Concepts float 4 -3.40292347E+38 to +3.40292347E+38 double 8 -1.79769313486231570E+308 to +1.79769313486231570E+308 float a = 200; float b = 200.5f; // 200.5F; double c = 300; 14 double d = 300.7d; // 300.7D;
CHARACTER TYPE Mr.Warawut Khangkhan Data Type Size Range (Byte) Chapter 2 Basic Programming Concepts char 2 0 to 65,535 char c = ‘A’; char cInt = 65; 15
Mr.Warawut Chapter 2 Basic Programming Concepts Khangkhan 16 EX. PROGRAMMING CHARACTER TYPE
BOOLEAN TYPE Mr.Warawut Khangkhan F F F2 F F ˈ F Chapter 2 Basic Programming Concepts true false boolean b1 = false; boolean b2 = true; 17
STRING TYPE Mr.Warawut Khangkhan Java F F F F Chapter 2 Basic Programming Concepts (class) String name = “Warawut”; String langProg = “Java”; 18
Mr.Warawut Khangkhan Chapter 2 Basic Programming Concepts Basic Programming Concepts CONSTANT 19
F (CONSTANT) Mr.Warawut Khangkhan F F F Chapter 2 Basic Programming Concepts final dataType varName [= value]; dataType = F varName = value = F 20
Mr.Warawut Chapter 2 Basic Programming Concepts Khangkhan 21 EX. PROGRAMMING CONSTANT
Mr.Warawut Chapter 2 Basic Programming Concepts Khangkhan 22 EX. PROGRAMMING CONSTANT
Mr.Warawut Khangkhan Chapter 2 Basic Programming Concepts Basic Programming Concepts OPERATOR 23
(OPERATOR) Mr.Warawut Khangkhan F (Expression) F F F F , , ˆ F Chapter 2 Basic Programming Concepts F F (Operator) F F num1 + num2 a = (b - c) * d 24
(OPERATOR) Mr.Warawut Khangkhan F (Assignment Operators) Chapter 2 Basic Programming Concepts F (Arithmetic Operators) (Comparison Operators) F (Logical Operators) (Unary Operators) (Bitwise Operators) 25
ASSIGNMENT OPERATORS Mr.Warawut Khangkhan Operator Description = F Chapter 2 Basic Programming Concepts += F -= F *= F /= F %= F 26
ASSIGNMENT OPERATORS Mr.Warawut Khangkhan F F F F F a = 30 a = 30 30 Chapter 2 Basic Programming Concepts a += 5 a = a + 5 35 a -= 10 a = a - 10 25 a *= 2 a = a * 2 50 a /= 5 a = a / 5 10 a %= 5 a = a % 5 0 27
ARITHMETIC OPERATORS Mr.Warawut Khangkhan Operator Description Example + a + b Chapter 2 Basic Programming Concepts - a - b * a * b / a / b % a % b 28
COMPARISON OPERATORS Mr.Warawut Khangkhan Operator Description Example == F a == b Chapter 2 Basic Programming Concepts != F F a != b > F a > b >= F F a >= b < F F a < b <= F F F a <= b 29
LOGICAL OPERATORS Mr.Warawut Khangkhan Operator Description Example && and a && b Chapter 2 Basic Programming Concepts || or a || b ! not !a 30
LOGICAL OPERATORS Mr.Warawut Khangkhan a b a && b a || b !a !b T T T T F F Chapter 2 Basic Programming Concepts T F F T F T F T F T T F F F F F T T T – True F – False 31
UNARY OPERATORS Mr.Warawut Khangkhan Operator Description Format Example Execute ++ F Postfix a = b++ a=b b=b+1 Chapter 2 Basic Programming Concepts Prefix a = ++ b b=b+1 a=b F Postfix a = b-- a=b -- b=b-1 Prefix a = --b b=b–1 a=b 32
UNARY OPERATORS Mr.Warawut Khangkhan a = 5; System.out.println(a); System.out.println(a); Chapter 2 Basic Programming Concepts 5 System.out.println(a++); System.out.println(a++); 5 System.out.println(++a); System.out.println(++a); 7 System.out.println(a); System.out.println(a); 7 System.out.println(--a); System.out.println(--a); 6 System.out.println(a--); (a-- System.out.println(a--); 6 System.out.println(a); System.out.println(a); 5 33
BITWISE OPERATORS Mr.Warawut Khangkhan Operator Description << left shift F Chapter 2 Basic Programming Concepts >> right shift & bitwise AND | bitwise OR ^ bitwise XOR ˈ F 34 (Operand) F Integer Character
BITWISE OPERATORS Mr.Warawut Khangkhan a b a & b a | b a ^ b 1 1 1 1 0 Chapter 2 Basic Programming Concepts 1 0 0 1 1 0 1 0 1 1 0 0 0 0 0 1 – Open (True) 0 – Close (False) 35
BITWISE OPERATORS Mr.Warawut Khangkhan F a = 01000001, b = 00100001 a&b Chapter 2 Basic Programming Concepts a 0 1 0 0 0 0 0 1 & b 0 0 1 0 0 0 0 1 0 0 0 0 0 0 0 1 36
BITWISE OPERATORS Mr.Warawut Khangkhan F a = 01000001, b = 00100001 a|b Chapter 2 Basic Programming Concepts a 0 1 0 0 0 0 0 1 | b 0 0 1 0 0 0 0 1 0 1 1 0 0 0 0 1 37
BITWISE OPERATORS Mr.Warawut Khangkhan F a = 01000001, b = 00100001 a^b Chapter 2 Basic Programming Concepts a 0 1 0 0 0 0 0 1 ^ b 0 0 1 0 0 0 0 1 0 1 1 0 0 0 0 0 38
BITWISE OPERATORS Mr.Warawut Khangkhan a << 2 Chapter 2 Basic Programming Concepts a 0 0 1 0 0 0 0 1 1 0 0 0 0 1 0 0 If x = 8 then y = x << 2 is that y = 8 * 22 = 32 39
BITWISE OPERATORS Mr.Warawut Khangkhan b >> 3 Chapter 2 Basic Programming Concepts b 0 1 0 0 0 0 0 1 0 0 0 0 1 0 0 0 If x = 32 then y = x >> 2 is that y = 32 / 22 = 8 40
Mr.Warawut Khangkhan Chapter 2 Basic Programming Concepts Chapter 2 Basic Programming Concepts OPERATOR OF PRCEDENCE 41
Mr.Warawut Chapter 2 Basic Programming Concepts Khangkhan 42 F F F F F F (Operand) F F ˈ F
1 ( ), [ ] L R 2 ++, --, !, ~ R L Mr.Warawut Khangkhan 3 *, /, % L R 4 +, - L R 5 <<, >>, >>> L R Chapter 2 Basic Programming Concepts 6 <, <=, >, >= L R 7 ==, != L R 8 & L R 9 ^ L R 10 | L R 11 && L R 12 || L R 13 ?: L R 14 =, +=, -=, *=, /=, %=, <<=, >>=, >>>=, &=, ^=, R L != 43
Mr.Warawut Chapter 2 Basic Programming Concepts Khangkhan 44 25 25 a = 5, b = 2, c = 10 70 70 (a + b) * c = ? a+b*c=?
a = 5, b = 2, c = 10, d = 3 Mr.Warawut Khangkhan a+b*c+d=? 73 28 Chapter 2 Basic Programming Concepts (a + b) * c + d = ? 73 28 (a + b) * (c + d) = ? 73 a + (b * c) + d = ? 28 45
Mr.Warawut Khangkhan Chapter 2 Basic Programming Concepts Chapter 2 Basic Programming Concepts CONVERSION DATA TYPE 46
F Mr.Warawut Khangkhan Implicit Type Conversion - F F Chapter 2 Basic Programming Concepts Explicit Type Conversion - F F 47
Mr.Warawut Chapter 2 Basic Programming Concepts Khangkhan 48 F F ˈ IMPLICIT TYPE F CONVERSION ˈ F F F
EXPLICIT TYPE CONVERSION Mr.Warawut Khangkhan F F ˈ F F ˈ F F Chapter 2 Basic Programming Concepts valNameResult = (dataType) valName valNameResult = F F dataType = F valName = F F 49
Mr.Warawut Chapter 2 Basic Programming Concepts Khangkhan 50 EX. CODE EXPLICIT TYPE CONVERSION
EXPLICIT TYPE CONVERSION Mr.Warawut Khangkhan F F F F ˈ F Java Chapter 2 Basic Programming Concepts F F F (Character) F ˈ F F F ˈ F (Method) (Class) Wrapper ˈ class F F (Primitive Data Type) 51
F METHOD F CLASS WRAPPER Mr.Warawut Khangkhan Class Primitive Method F F ˈ Method F F ˈ Wrapper Data Type Chapter 2 Basic Programming Concepts Integer int Integer.parseInt( ) Integer.toString( ) Float float Float.parseFloat( ) Float.toString( ) Double double Double.parseDouble( ) Double.toString( ) 52
Mr.Warawut Chapter 2 Basic Programming Concepts Khangkhan 53 EX. CODE CLASS WRAPPER
Mr.Warawut Khangkhan Chapter 2 Basic Programming Concepts Basic Programming Concepts DATA OUTPUT & INPUT 54
F F PRINTLN Mr.Warawut Khangkhan Method println( ) print( ) F F Object out Class System Chapter 2 Basic Programming Concepts System.out.println(arg1 + arg2 + … + arg_n); or System.out.print(arg1 + arg2 + .. + arg_n); arg1, arg2, arg_n = ˈ F F 55
F ARGUMENT Mr.Warawut Khangkhan b cursor 1 Chapter 2 Basic Programming Concepts f F F n F r cursor F t ’ ‘ ” ” xxx Ascii F 065 A 56 uxxx Unicode F u0008 F
Mr.Warawut Chapter 2 Basic Programming Concepts Khangkhan 57
F F PRINTF Mr.Warawut Khangkhan Method printf( ) F F Object out Class System Chapter 2 Basic Programming Concepts System.out.printf(Control_String, arg1 + arg2 + … + arg_n); Control_String = F , F arg1, arg2, arg_n = ˈ F F 58
Mr.Warawut Chapter 2 Basic Programming Concepts Khangkhan 59 METHOD exponential F F F F PRINTF %d %u %c %e %s %f
Mr.Warawut Chapter 2 Basic Programming Concepts Khangkhan 60 F F F F F F F F METHOD PRINTF F F F F F F F F F ˈ F F ) + - .( F F
Mr.Warawut Chapter 2 Basic Programming Concepts Khangkhan 61
F F JOPTIONPANE Mr.Warawut Khangkhan Class JOptionPane F Graphic Mode Popup Chapter 2 Basic Programming Concepts Window F Dialogbox MessageDialog F method showMessageDialog( ) F F F Class JOptionPane F F Object Class JOptionPane F F import class package javax.swing F project 62
F F JOPTIONPANE Mr.Warawut Khangkhan JOptionPane.showMessageDialog( Parent_Window, Message, Title, Type); Chapter 2 Basic Programming Concepts Parent_Window = ˈ F F F F ˈ null Dialog box F Message = ˈ F Dialog box Title = ˈ F F Title bar 63
F F JOPTIONPANE Mr.Warawut Khangkhan Type = ˈ Dialog box F F Chapter 2 Basic Programming Concepts • ERROR_MESSAGE - F • INFORMATION_MESSAGE - F • PLAIN_MESSAGE - F F F • QUESTION_MESSAGE - • WARNING_MESSAGE - F 64
Mr.Warawut Chapter 2 Basic Programming Concepts Khangkhan 65
F DECIMALFORMAT Mr.Warawut Khangkhan ˈ F F F F Chapter 2 Basic Programming Concepts Class DecimalFormat F import package java.text F Project 66
F DECIMALFORMAT Mr.Warawut Khangkhan DecmialFormat df = new DecimalFormat(arg); String str = df.format(payment); Chapter 2 Basic Programming Concepts arg = ˈ F F • 0 0 F • “#” F F0 ˈ 0 F • “,” ˈ df = ˈ object class F 67 str = ˈ F F F
Mr.Warawut Chapter 2 Basic Programming Concepts Khangkhan 68
F F INPUTSTREAMREADER Mr.Warawut Khangkhan Class InputStreamReader ˈ F Class BufferedReader Chapter 2 Basic Programming Concepts F 1 F Method readLine( ) ˈ F F (String) F import package java.io F 69
F INPUTSTREAMREADER Mr.Warawut Khangkhan InputStreamReader rd = new InputStreamReader(System.in); BufferedReader stdin = new BufferedReader(rd); Chapter 2 Basic Programming Concepts or BufferedReader stdin = new InputStreamReader( new InputStreamReader(System.in)); reader = ˈ object class InputStreamReader stdin = ˈ object class BufferedReader 70
Mr.Warawut Chapter 2 Basic Programming Concepts Khangkhan 71
F F SCANNER Mr.Warawut Khangkhan F F ˈ F F Chapter 2 Basic Programming Concepts F Scanner F F object class Scanner F import package java.util 72
SCANNER Mr.Warawut Khangkhan Scanner sn = new Scanner(System.in); Chapter 2 Basic Programming Concepts sn = ˈ object F class Scanner System.in = ˈ F F F F F ˂ F Method •nextInt( ) F Integer •nextFloat( ) F Float •nextDouble( ) F Double 73 •nextLine( ) F String
Mr.Warawut Chapter 2 Basic Programming Concepts Khangkhan 74
F F JOPTIONPANE Mr.Warawut Khangkhan F Method showInputDialog( ) F ˈ F F (String) Chapter 2 Basic Programming Concepts F JOptionPane F F object class JOptionPane F import package javax.swing 75
JOPTIONPANE Mr.Warawut Khangkhan JOptionPane.showInputDialog( Parent_Window, Message, Title, Type); Chapter 2 Basic Programming Concepts Parent_Window = ˈ F F F F ˈ null Dialog box F Message = ˈ F Dialog box Title = ˈ F F Title bar 76
JOPTIONPANE Mr.Warawut Khangkhan Type = ˈ Dialog box F F Chapter 2 Basic Programming Concepts • ERROR_MESSAGE - F • INFORMATION_MESSAGE - F • PLAIN_MESSAGE - F F F • QUESTION_MESSAGE - • WARNING_MESSAGE - F 77
Mr.Warawut Chapter 2 Basic Programming Concepts Khangkhan 78

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Object-Oriented Programming 2

  • 1. CHAPTER 2 BASIC PROGRAMMING CONCEPTS Mr.Warawut Khangkhan e-Mail: awarawut@hotmail.com Social Media: www.facebook.com/AjWarawut
  • 2. Mr.Warawut Khangkhan Chapter 2 Basic Programming Concepts Basic Programming Concepts PROGRAMMING IN STRUCTURED JAVA 2
  • 3. Mr.Warawut Chapter 1 Java & OOP Khangkhan 3
  • 4. Mr.Warawut Khangkhan Chapter 2 Basic Programming Concepts Chapter 2 Basic Programming Concepts VARIABLE DATA & 4
  • 5. JAVA Mr.Warawut Khangkhan F F a-z, A-Z, _, $ F F Chapter 2 Basic Programming Concepts a-z, A-Z, _, $ F F F F ˈ (Case Sensitive) F (Reserved Word) Literal Words (True, False, Null) 5
  • 6. Mr.Warawut Chapter 2 Basic Programming Concepts Khangkhan 6 F RESERVED WORD
  • 7. (DECLARATION) Mr.Warawut Khangkhan ˈ F F (Data Type) F Chapter 2 Basic Programming Concepts dataType varName [= value]; dataType = F varName = value = F 7
  • 8. F Mr.Warawut Khangkhan String name; float score; Chapter 2 Basic Programming Concepts char grade; String name = “Warawut”; float score = 85.5f; char grade = ‘A’; 8
  • 9. Mr.Warawut Khangkhan Chapter 2 Basic Programming Concepts Basic Programming Concepts DATA TYPE 9
  • 10. F (DATA TYPE) Mr.Warawut Khangkhan Primitive Data Type - F F F Chapter 2 Basic Programming Concepts Class Type – Interface Array Type – F ˈ F F F ˈ 10
  • 11. F (PRIMITIVE DATA TYPE) Mr.Warawut Khangkhan F (Integer) F Chapter 2 Basic Programming Concepts (Floating Point) F (Character) F F (Boolean) 11
  • 12. INTEGER TYPE Mr.Warawut Khangkhan Data Type Size Range (Byte) Chapter 2 Basic Programming Concepts byte 1 -128 to +127 short 2 -32,768 to +32,767 int 4 -2,147,483,648 to +2,147,483,647 long 8 -9,223,372,036,854,775,808 to +9,223,372,036,854,775,807 12
  • 13. EX. INTEGER TYPE Mr.Warawut Khangkhan byte A = 65; short B = 32767; Chapter 2 Basic Programming Concepts int C = 2147286444; long D = 21472864448L; long E = 21472864438l; 13
  • 14. FLOATING POINT TYPE Mr.Warawut Khangkhan Data Type Size Range (Byte) Chapter 2 Basic Programming Concepts float 4 -3.40292347E+38 to +3.40292347E+38 double 8 -1.79769313486231570E+308 to +1.79769313486231570E+308 float a = 200; float b = 200.5f; // 200.5F; double c = 300; 14 double d = 300.7d; // 300.7D;
  • 15. CHARACTER TYPE Mr.Warawut Khangkhan Data Type Size Range (Byte) Chapter 2 Basic Programming Concepts char 2 0 to 65,535 char c = ‘A’; char cInt = 65; 15
  • 16. Mr.Warawut Chapter 2 Basic Programming Concepts Khangkhan 16 EX. PROGRAMMING CHARACTER TYPE
  • 17. BOOLEAN TYPE Mr.Warawut Khangkhan F F F2 F F ˈ F Chapter 2 Basic Programming Concepts true false boolean b1 = false; boolean b2 = true; 17
  • 18. STRING TYPE Mr.Warawut Khangkhan Java F F F F Chapter 2 Basic Programming Concepts (class) String name = “Warawut”; String langProg = “Java”; 18
  • 19. Mr.Warawut Khangkhan Chapter 2 Basic Programming Concepts Basic Programming Concepts CONSTANT 19
  • 20. F (CONSTANT) Mr.Warawut Khangkhan F F F Chapter 2 Basic Programming Concepts final dataType varName [= value]; dataType = F varName = value = F 20
  • 21. Mr.Warawut Chapter 2 Basic Programming Concepts Khangkhan 21 EX. PROGRAMMING CONSTANT
  • 22. Mr.Warawut Chapter 2 Basic Programming Concepts Khangkhan 22 EX. PROGRAMMING CONSTANT
  • 23. Mr.Warawut Khangkhan Chapter 2 Basic Programming Concepts Basic Programming Concepts OPERATOR 23
  • 24. (OPERATOR) Mr.Warawut Khangkhan F (Expression) F F F F , , ˆ F Chapter 2 Basic Programming Concepts F F (Operator) F F num1 + num2 a = (b - c) * d 24
  • 25. (OPERATOR) Mr.Warawut Khangkhan F (Assignment Operators) Chapter 2 Basic Programming Concepts F (Arithmetic Operators) (Comparison Operators) F (Logical Operators) (Unary Operators) (Bitwise Operators) 25
  • 26. ASSIGNMENT OPERATORS Mr.Warawut Khangkhan Operator Description = F Chapter 2 Basic Programming Concepts += F -= F *= F /= F %= F 26
  • 27. ASSIGNMENT OPERATORS Mr.Warawut Khangkhan F F F F F a = 30 a = 30 30 Chapter 2 Basic Programming Concepts a += 5 a = a + 5 35 a -= 10 a = a - 10 25 a *= 2 a = a * 2 50 a /= 5 a = a / 5 10 a %= 5 a = a % 5 0 27
  • 28. ARITHMETIC OPERATORS Mr.Warawut Khangkhan Operator Description Example + a + b Chapter 2 Basic Programming Concepts - a - b * a * b / a / b % a % b 28
  • 29. COMPARISON OPERATORS Mr.Warawut Khangkhan Operator Description Example == F a == b Chapter 2 Basic Programming Concepts != F F a != b > F a > b >= F F a >= b < F F a < b <= F F F a <= b 29
  • 30. LOGICAL OPERATORS Mr.Warawut Khangkhan Operator Description Example && and a && b Chapter 2 Basic Programming Concepts || or a || b ! not !a 30
  • 31. LOGICAL OPERATORS Mr.Warawut Khangkhan a b a && b a || b !a !b T T T T F F Chapter 2 Basic Programming Concepts T F F T F T F T F T T F F F F F T T T – True F – False 31
  • 32. UNARY OPERATORS Mr.Warawut Khangkhan Operator Description Format Example Execute ++ F Postfix a = b++ a=b b=b+1 Chapter 2 Basic Programming Concepts Prefix a = ++ b b=b+1 a=b F Postfix a = b-- a=b -- b=b-1 Prefix a = --b b=b–1 a=b 32
  • 33. UNARY OPERATORS Mr.Warawut Khangkhan a = 5; System.out.println(a); System.out.println(a); Chapter 2 Basic Programming Concepts 5 System.out.println(a++); System.out.println(a++); 5 System.out.println(++a); System.out.println(++a); 7 System.out.println(a); System.out.println(a); 7 System.out.println(--a); System.out.println(--a); 6 System.out.println(a--); (a-- System.out.println(a--); 6 System.out.println(a); System.out.println(a); 5 33
  • 34. BITWISE OPERATORS Mr.Warawut Khangkhan Operator Description << left shift F Chapter 2 Basic Programming Concepts >> right shift & bitwise AND | bitwise OR ^ bitwise XOR ˈ F 34 (Operand) F Integer Character
  • 35. BITWISE OPERATORS Mr.Warawut Khangkhan a b a & b a | b a ^ b 1 1 1 1 0 Chapter 2 Basic Programming Concepts 1 0 0 1 1 0 1 0 1 1 0 0 0 0 0 1 – Open (True) 0 – Close (False) 35
  • 36. BITWISE OPERATORS Mr.Warawut Khangkhan F a = 01000001, b = 00100001 a&b Chapter 2 Basic Programming Concepts a 0 1 0 0 0 0 0 1 & b 0 0 1 0 0 0 0 1 0 0 0 0 0 0 0 1 36
  • 37. BITWISE OPERATORS Mr.Warawut Khangkhan F a = 01000001, b = 00100001 a|b Chapter 2 Basic Programming Concepts a 0 1 0 0 0 0 0 1 | b 0 0 1 0 0 0 0 1 0 1 1 0 0 0 0 1 37
  • 38. BITWISE OPERATORS Mr.Warawut Khangkhan F a = 01000001, b = 00100001 a^b Chapter 2 Basic Programming Concepts a 0 1 0 0 0 0 0 1 ^ b 0 0 1 0 0 0 0 1 0 1 1 0 0 0 0 0 38
  • 39. BITWISE OPERATORS Mr.Warawut Khangkhan a << 2 Chapter 2 Basic Programming Concepts a 0 0 1 0 0 0 0 1 1 0 0 0 0 1 0 0 If x = 8 then y = x << 2 is that y = 8 * 22 = 32 39
  • 40. BITWISE OPERATORS Mr.Warawut Khangkhan b >> 3 Chapter 2 Basic Programming Concepts b 0 1 0 0 0 0 0 1 0 0 0 0 1 0 0 0 If x = 32 then y = x >> 2 is that y = 32 / 22 = 8 40
  • 41. Mr.Warawut Khangkhan Chapter 2 Basic Programming Concepts Chapter 2 Basic Programming Concepts OPERATOR OF PRCEDENCE 41
  • 42. Mr.Warawut Chapter 2 Basic Programming Concepts Khangkhan 42 F F F F F F (Operand) F F ˈ F
  • 43. 1 ( ), [ ] L R 2 ++, --, !, ~ R L Mr.Warawut Khangkhan 3 *, /, % L R 4 +, - L R 5 <<, >>, >>> L R Chapter 2 Basic Programming Concepts 6 <, <=, >, >= L R 7 ==, != L R 8 & L R 9 ^ L R 10 | L R 11 && L R 12 || L R 13 ?: L R 14 =, +=, -=, *=, /=, %=, <<=, >>=, >>>=, &=, ^=, R L != 43
  • 44. Mr.Warawut Chapter 2 Basic Programming Concepts Khangkhan 44 25 25 a = 5, b = 2, c = 10 70 70 (a + b) * c = ? a+b*c=?
  • 45. a = 5, b = 2, c = 10, d = 3 Mr.Warawut Khangkhan a+b*c+d=? 73 28 Chapter 2 Basic Programming Concepts (a + b) * c + d = ? 73 28 (a + b) * (c + d) = ? 73 a + (b * c) + d = ? 28 45
  • 46. Mr.Warawut Khangkhan Chapter 2 Basic Programming Concepts Chapter 2 Basic Programming Concepts CONVERSION DATA TYPE 46
  • 47. F Mr.Warawut Khangkhan Implicit Type Conversion - F F Chapter 2 Basic Programming Concepts Explicit Type Conversion - F F 47
  • 48. Mr.Warawut Chapter 2 Basic Programming Concepts Khangkhan 48 F F ˈ IMPLICIT TYPE F CONVERSION ˈ F F F
  • 49. EXPLICIT TYPE CONVERSION Mr.Warawut Khangkhan F F ˈ F F ˈ F F Chapter 2 Basic Programming Concepts valNameResult = (dataType) valName valNameResult = F F dataType = F valName = F F 49
  • 50. Mr.Warawut Chapter 2 Basic Programming Concepts Khangkhan 50 EX. CODE EXPLICIT TYPE CONVERSION
  • 51. EXPLICIT TYPE CONVERSION Mr.Warawut Khangkhan F F F F ˈ F Java Chapter 2 Basic Programming Concepts F F F (Character) F ˈ F F F ˈ F (Method) (Class) Wrapper ˈ class F F (Primitive Data Type) 51
  • 52. F METHOD F CLASS WRAPPER Mr.Warawut Khangkhan Class Primitive Method F F ˈ Method F F ˈ Wrapper Data Type Chapter 2 Basic Programming Concepts Integer int Integer.parseInt( ) Integer.toString( ) Float float Float.parseFloat( ) Float.toString( ) Double double Double.parseDouble( ) Double.toString( ) 52
  • 53. Mr.Warawut Chapter 2 Basic Programming Concepts Khangkhan 53 EX. CODE CLASS WRAPPER
  • 54. Mr.Warawut Khangkhan Chapter 2 Basic Programming Concepts Basic Programming Concepts DATA OUTPUT & INPUT 54
  • 55. F F PRINTLN Mr.Warawut Khangkhan Method println( ) print( ) F F Object out Class System Chapter 2 Basic Programming Concepts System.out.println(arg1 + arg2 + … + arg_n); or System.out.print(arg1 + arg2 + .. + arg_n); arg1, arg2, arg_n = ˈ F F 55
  • 56. F ARGUMENT Mr.Warawut Khangkhan b cursor 1 Chapter 2 Basic Programming Concepts f F F n F r cursor F t ’ ‘ ” ” xxx Ascii F 065 A 56 uxxx Unicode F u0008 F
  • 57. Mr.Warawut Chapter 2 Basic Programming Concepts Khangkhan 57
  • 58. F F PRINTF Mr.Warawut Khangkhan Method printf( ) F F Object out Class System Chapter 2 Basic Programming Concepts System.out.printf(Control_String, arg1 + arg2 + … + arg_n); Control_String = F , F arg1, arg2, arg_n = ˈ F F 58
  • 59. Mr.Warawut Chapter 2 Basic Programming Concepts Khangkhan 59 METHOD exponential F F F F PRINTF %d %u %c %e %s %f
  • 60. Mr.Warawut Chapter 2 Basic Programming Concepts Khangkhan 60 F F F F F F F F METHOD PRINTF F F F F F F F F F ˈ F F ) + - .( F F
  • 61. Mr.Warawut Chapter 2 Basic Programming Concepts Khangkhan 61
  • 62. F F JOPTIONPANE Mr.Warawut Khangkhan Class JOptionPane F Graphic Mode Popup Chapter 2 Basic Programming Concepts Window F Dialogbox MessageDialog F method showMessageDialog( ) F F F Class JOptionPane F F Object Class JOptionPane F F import class package javax.swing F project 62
  • 63. F F JOPTIONPANE Mr.Warawut Khangkhan JOptionPane.showMessageDialog( Parent_Window, Message, Title, Type); Chapter 2 Basic Programming Concepts Parent_Window = ˈ F F F F ˈ null Dialog box F Message = ˈ F Dialog box Title = ˈ F F Title bar 63
  • 64. F F JOPTIONPANE Mr.Warawut Khangkhan Type = ˈ Dialog box F F Chapter 2 Basic Programming Concepts • ERROR_MESSAGE - F • INFORMATION_MESSAGE - F • PLAIN_MESSAGE - F F F • QUESTION_MESSAGE - • WARNING_MESSAGE - F 64
  • 65. Mr.Warawut Chapter 2 Basic Programming Concepts Khangkhan 65
  • 66. F DECIMALFORMAT Mr.Warawut Khangkhan ˈ F F F F Chapter 2 Basic Programming Concepts Class DecimalFormat F import package java.text F Project 66
  • 67. F DECIMALFORMAT Mr.Warawut Khangkhan DecmialFormat df = new DecimalFormat(arg); String str = df.format(payment); Chapter 2 Basic Programming Concepts arg = ˈ F F • 0 0 F • “#” F F0 ˈ 0 F • “,” ˈ df = ˈ object class F 67 str = ˈ F F F
  • 68. Mr.Warawut Chapter 2 Basic Programming Concepts Khangkhan 68
  • 69. F F INPUTSTREAMREADER Mr.Warawut Khangkhan Class InputStreamReader ˈ F Class BufferedReader Chapter 2 Basic Programming Concepts F 1 F Method readLine( ) ˈ F F (String) F import package java.io F 69
  • 70. F INPUTSTREAMREADER Mr.Warawut Khangkhan InputStreamReader rd = new InputStreamReader(System.in); BufferedReader stdin = new BufferedReader(rd); Chapter 2 Basic Programming Concepts or BufferedReader stdin = new InputStreamReader( new InputStreamReader(System.in)); reader = ˈ object class InputStreamReader stdin = ˈ object class BufferedReader 70
  • 71. Mr.Warawut Chapter 2 Basic Programming Concepts Khangkhan 71
  • 72. F F SCANNER Mr.Warawut Khangkhan F F ˈ F F Chapter 2 Basic Programming Concepts F Scanner F F object class Scanner F import package java.util 72
  • 73. SCANNER Mr.Warawut Khangkhan Scanner sn = new Scanner(System.in); Chapter 2 Basic Programming Concepts sn = ˈ object F class Scanner System.in = ˈ F F F F F ˂ F Method •nextInt( ) F Integer •nextFloat( ) F Float •nextDouble( ) F Double 73 •nextLine( ) F String
  • 74. Mr.Warawut Chapter 2 Basic Programming Concepts Khangkhan 74
  • 75. F F JOPTIONPANE Mr.Warawut Khangkhan F Method showInputDialog( ) F ˈ F F (String) Chapter 2 Basic Programming Concepts F JOptionPane F F object class JOptionPane F import package javax.swing 75
  • 76. JOPTIONPANE Mr.Warawut Khangkhan JOptionPane.showInputDialog( Parent_Window, Message, Title, Type); Chapter 2 Basic Programming Concepts Parent_Window = ˈ F F F F ˈ null Dialog box F Message = ˈ F Dialog box Title = ˈ F F Title bar 76
  • 77. JOPTIONPANE Mr.Warawut Khangkhan Type = ˈ Dialog box F F Chapter 2 Basic Programming Concepts • ERROR_MESSAGE - F • INFORMATION_MESSAGE - F • PLAIN_MESSAGE - F F F • QUESTION_MESSAGE - • WARNING_MESSAGE - F 77
  • 78. Mr.Warawut Chapter 2 Basic Programming Concepts Khangkhan 78