Java with BlueJ, 2016a

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44 CHAPTER 2. BASICS you see the actual operator priorities. For example, both unary minus and boolean not have the same priority (15) which is much higher than most others. Assignment has the lowest priority (2). There are several operators we do not discuss in this text. There are operators for every level from 1 to 16; we have not included any of the operators at levels 1, 6, 7, or 8. You could consult a reference such as <strong>Java</strong> in a Nutshell [5] at some future date. Complex Expressions Expressions can be very complex . . . each operand can itself be an expression that evaluates to true or false. Consider the following complex expression where a, b, c, d, x, z are numeric types: boolean answer = a+b > c+d && x c+d and x (c+d)) && (x
2.4. OPERATORS 45 odd statement to include; what is more likely is to have several variables all initialized to the same value, as in: int i = j = k = 1;
Page 1 and 2: Java with BlueJ Part I Ron McFadyen
Page 3 and 4: To Callum 3
Page 5 and 6: Contents 1 Introduction 9 1.1 Java,
Page 7 and 8: Preface This book is Part I of a tw
Page 9 and 10: Chapter 1 Introduction This book is
Page 11 and 12: 1.2. THE JAVA COMPILER AND THE JAVA
Page 13 and 14: 1.4. A FIRST PROGRAM 13 1.4 A First
Page 15 and 16: 1.5. USING BLUEJ TO RUN HELLOWORLD
Page 17 and 18: 1.5. USING BLUEJ TO RUN HELLOWORLD
Page 19 and 20: Chapter 2 Basics This chapter cover
Page 21 and 22: 2.2. VARIABLES 21 Listing 2.1: Usin
Page 23 and 24: 2.3. PRIMITIVE DATA TYPES 23 Exerci
Page 25 and 26: 2.3. PRIMITIVE DATA TYPES 25 Defaul
Page 27 and 28: 2.3. PRIMITIVE DATA TYPES 27 14 Sys
Page 29 and 30: 2.3. PRIMITIVE DATA TYPES 29 2.3.3
Page 31 and 32: 2.3. PRIMITIVE DATA TYPES 31 Exampl
Page 33 and 34: 2.3. PRIMITIVE DATA TYPES 33 10 int
Page 35 and 36: 2.3. PRIMITIVE DATA TYPES 35 where
Page 37 and 38: 2.3. PRIMITIVE DATA TYPES 37 to kno
Page 39 and 40: 2.3. PRIMITIVE DATA TYPES 39 9 // D
Page 41 and 42: 2.3. PRIMITIVE DATA TYPES 41 use in
Page 43: 2.4. OPERATORS 43 2.4 Operators We
Page 47 and 48: 2.5. THE STRING CLASS 47 Since text
Page 49 and 50: 2.5. THE STRING CLASS 49 name of th
Page 51 and 52: 2.5. THE STRING CLASS 51 Example, d
Page 53 and 54: 2.5. THE STRING CLASS 53 Exercises
Page 55 and 56: 2.6. OUTPUT 55 12 // Each time prin
Page 57 and 58: 2.6. OUTPUT 57 Test your program wi
Page 59 and 60: 2.6. OUTPUT 59 • Lines 14 and 15
Page 61 and 62: 2.7. INPUT 61 2.7 Input We examine
Page 63 and 64: 2.7. INPUT 63 Figure 2.8: Terminal
Page 65 and 66: 2.7. INPUT 65 2.7.2 The JOptionPane
Page 67 and 68: Chapter 3 Control Structures Progra
Page 69 and 70: 3.2. WHILE 69 A logical expression
Page 71 and 72: 3.2. WHILE 71 Figure 3.1: Output fr
Page 73 and 74: 3.2. WHILE 73 An example of output
Page 75 and 76: 3.2. WHILE 75 25 } 26 } Figure 3.2:
Page 77 and 78: 3.2. WHILE 77 Autoincrement Because
Page 79 and 80: 3.3. IF 79 Example 1 Suppose one ne
Page 81 and 82: 3.3. IF 81 Exercises 15. Write a pr
Page 83 and 84: 3.3. IF 83 9 { 10 public static voi
Page 85 and 86: 3.3. IF 85 Listing 3.6: Using an if
Page 87 and 88: 3.3. IF 87 the indentation. Each of
Page 89 and 90: 3.4. FOR 89 3.4 for The for stateme
Page 91 and 92: 3.4. FOR 91 Example 1 Below we use
Page 93 and 94: 3.4. FOR 93 Table 3.1: Process indi
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3.4. FOR 95 Example 4 The program i
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3.4. FOR 97 Example 5 In this examp
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3.4. FOR 99 . . . Step 2, formattin
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3.4. FOR 101 Exercises 20. Modify t
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3.4. FOR 103 34. Modify the previou
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3.5. DO ...WHILE 105 Example 1 Let
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3.5. DO ...WHILE 107 Listing 3.16:
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3.6. SWITCH 109 3.6 switch The swit
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3.6. SWITCH 111 Example 1 Previousl
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3.6. SWITCH 113 Exercises 39. Write
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Chapter 4 Classes in the Java Class
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4.1. RANDOM 117 Example 2 Consider
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4.1. RANDOM 119 Exercises 1. Modify
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4.2. CHARACTER 121 Example 1 Ifthed
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4.2. CHARACTER 123 Example 2 The Ch
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4.2. CHARACTER 125 Below is the out
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4.3. SCANNER 127 4.3 Scanner Previo
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4.3. SCANNER 129 Note that the abov
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4.3. SCANNER 131
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4.3. SCANNER 133 Exercises 11. Modi
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4.4. MATH 135 The Math Class Fields
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4.5. INTEGER 137 4.5 Integer The In
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4.5. INTEGER 139 Listing 4.9: Using
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Chapter 5 ArrayLists There are seve
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143 The enhanced for Thereisavariat
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145 Example 2 The contains() method
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147 20 people.add(new Random()); 21
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Chapter 6 One-Dimensional Arrays Th
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6.1. INITIALIZING ARRAYS 151 6.1 In
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6.3. THE ENHANCED FOR 153 6.3 The e
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6.4. PASSING STRING VALUES INTO MAI
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6.5. PARALLEL ARRAYS 157 18 } This
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6.6. PARTIALLY FILLED ARRAYS 159 Th
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6.7. ARRAY UTILITIES IN JAVA CLASS
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6.7. ARRAY UTILITIES IN JAVA CLASS
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Chapter 7 Designing Java Classes Up
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7.1. USING MULTIPLE CLASSES 167 7.1
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7.2. FIELDS 169 Figure 7.2: Class d
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7.3. METHODS 171 7.3 Methods A meth
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7.3. METHODS 173 Calling the other
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7.3. METHODS 175 void methods Somet
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7.4. CONSTRUCTORS 177 10 private St
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7.4. CONSTRUCTORS 179 Using constru
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7.5. VISIBILITY SPECIFICATIONS: PUB
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7.7. ASSOCIATIONS 183 7.7 Associati
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7.7. ASSOCIATIONS 185 Notice that t
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7.7. ASSOCIATIONS 187 Now reconside
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7.8. REUSING CODE 189 24 } The outp
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7.9. PARAMETER LISTS AND ARGUMENTS
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7.10. VARARGS: A VARIABLE NUMBER OF
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7.11. CODE LISTINGS: STUDENT, SUBJE
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Chapter 8 A Brief Introduction to G
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8.1. BRIEF INTRODUCTION TO SIMPLE G
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Bibliography [1] http://publication
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