測試與封裝 5.2
程式開發簡介:
【開發環境】:eclipse
【開發人員】:Ives & 鄭勝斌
【部落格地址】:38鄭勝斌
【開發時間】:2015-05-08
【版本】:5.2
【協同工作】:
這次主要是新增減法乘法除法,保證除數不為0,修復點選“再來”會重新出題
【未解決問題】:
判斷文字框為空沒有反應
if(textField_3.getText()=="")
要把 == 改成 != 才有反應
介面程式碼如下:
1 package com.ives; 2 3 import java.awt.EventQueue; 4 5 public class frame { 6 7 private JFrame frame; 8 private JTextField textField; 9 private JTextField textField_1; 10 private JTextField textField_2; 11 private JTextField textField_3; 12 private JTextField textField_4; 13 private JTextField textField_5; 14 frame f; 15 16 int a; 17 int b; 18 char []op={'+','-','*','/'}; 19 String Sa; 20 String Sb; 21 int result; 22 static int i = (int) (Math.random() * 3); 23 24 25 Expression expression = new Expression(); 26 private JButton btnNewButton_1; 27 28 29 /** 30 * Launch the application. 31 */ 32 public static void main(String[] args) { 33 EventQueue.invokeLater(new Runnable() { 34 public void run() { 35 try { 36 frame window = new frame(); 37 window.frame.setVisible(true);System.out.print(i); 38 } catch (Exception e) { 39 e.printStackTrace(); 40 } 41 } 42 }); 43 } 44 45 /** 46 * Create the application. 47 * @throws Yichang 48 */ 49 public frame() throws Yichang { 50 initialize(); 51 } 52 53 /** 54 * Initialize the contents of the frame. 55 */ 56 private void initialize() throws Yichang{ 57 frame = new JFrame(); 58 frame.setBounds(100, 100, 517, 352); 59 frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); 60 61 JPanel panel = new JPanel(); 62 frame.getContentPane().add(panel, BorderLayout.CENTER); 63 panel.setLayout(null); 64 65 JLabel lblNewLabel = new JLabel("\u56DB\u5219\u8FD0\u7B97\u56685.2"); 66 lblNewLabel.setFont(new Font("微軟雅黑", Font.PLAIN, 30)); 67 lblNewLabel.setBounds(141, 0, 208, 57); 68 panel.add(lblNewLabel); 69 70 textField = new JTextField(); 71 textField.setHorizontalAlignment(SwingConstants.CENTER); 72 textField.setFont(new Font("微軟雅黑", Font.PLAIN, 30)); 73 textField.setBounds(56, 82, 88, 45); 74 panel.add(textField); 75 textField.setColumns(10); 76 77 textField_1 = new JTextField(); 78 textField_1.setHorizontalAlignment(SwingConstants.CENTER); 79 textField_1.setFont(new Font("微軟雅黑", Font.PLAIN, 30)); 80 textField_1.setColumns(10); 81 textField_1.setBounds(220, 82, 88, 45); 82 panel.add(textField_1); 83 84 textField_2 = new JTextField("="); 85 textField_2.setHorizontalAlignment(SwingConstants.CENTER); 86 textField_2.setEditable(false); 87 textField_2.setFont(new Font("微軟雅黑", Font.PLAIN, 30)); 88 textField_2.setColumns(10); 89 textField_2.setBounds(318, 82, 36, 45); 90 panel.add(textField_2); 91 92 textField_3 = new JTextField(); 93 textField_3.setHorizontalAlignment(SwingConstants.CENTER); 94 textField_3.setFont(new Font("微軟雅黑", Font.PLAIN, 30)); 95 textField_3.setColumns(10); 96 textField_3.setBounds(371, 82, 88, 45); 97 panel.add(textField_3); 98 99 JButton btnNewButton = new JButton("\u505A\u5B8C\u4E86"); 100 btnNewButton.setFont(new Font("微軟雅黑", Font.PLAIN, 30)); 101 btnNewButton.setBounds(188, 156, 131, 45); 102 panel.add(btnNewButton); 103 104 JLabel lblNewLabel_1 = new JLabel("\u8BA1\u7B97\u7ED3\u679C"); 105 lblNewLabel_1.setFont(new Font("微軟雅黑", Font.PLAIN, 30)); 106 lblNewLabel_1.setBounds(56, 222, 131, 35); 107 panel.add(lblNewLabel_1); 108 109 textField_4 = new JTextField(); 110 textField_4.setFont(new Font("微軟雅黑", Font.PLAIN, 20)); 111 textField_4.setColumns(10); 112 textField_4.setBounds(188, 222, 161, 35); 113 panel.add(textField_4); 114 115 textField_5 = new JTextField(); 116 textField_5.setHorizontalAlignment(SwingConstants.CENTER); 117 textField_5.setEditable(false); 118 textField_5.setFont(new Font("微軟雅黑", Font.PLAIN, 30)); 119 textField_5.setText(String.valueOf(op[i])); 120 textField_5.setColumns(10); 121 textField_5.setBounds(159, 82, 44, 45); 122 panel.add(textField_5); 123 124 a = expression.geta(); 125 Sa = String.valueOf(a); 126 textField.setText(Sa); 127 128 b = expression.getb(); 129 Sb = String.valueOf(b); 130 textField_1.setText(Sb); 131 132 btnNewButton_1 = new JButton("\u518D\u6765 "); 133 btnNewButton_1.addActionListener(new ActionListener() { 134 public void actionPerformed(ActionEvent e) { 135 136 try { 137 f = new frame(); 138 } catch (Yichang e1) { 139 // TODO 自動生成的 catch 塊 140 e1.printStackTrace(); 141 } 142 frame.dispose(); 143 f.frame.setVisible(true); 144 145 } 146 }); 147 btnNewButton_1.setFont(new Font("微軟雅黑", Font.PLAIN, 30)); 148 btnNewButton_1.setBounds(366, 222, 107, 36); 149 panel.add(btnNewButton_1); 150 151 152 btnNewButton.addActionListener(new ActionListener() { 153 public void actionPerformed(ActionEvent arg0){ 154 int n3=Integer.valueOf(textField_3.getText().toString()); 155 switch(op[i]) 156 { 157 case '+':result = expression.expressionadd();break; 158 case '-':result = expression.expressionmin();break; 159 case '*':result = expression.expressionchen();break; 160 case '/':result = expression.expressionchu();break; 161 } 162 if(textField_3.getText()!="") 163 { 164 if(result==n3) 165 { 166 textField_4.setText(" 正確"); 167 } 168 else 169 { 170 textField_4.setText(" 錯誤!答案為"+result); 171 } 172 } 173 try { 174 if(textField_3.getText()=="") 175 throw new Yichang("不能為空!"); 176 } catch (Yichang e) { 177 // TODO 自動生成的 catch 塊 178 e.printStackTrace(); 179 } 180 181 /*try { 182 if(n3<0) 183 184 throw new Yichang("不可能是負數!"); 185 } catch (Yichang e) { 186 // TODO 自動生成的 catch 塊 187 e.printStackTrace(); 188 }*/ 189 190 } 191 }); 192 } 193 }
計算邏輯程式碼如下:
1 package com.ives; 2 import java.util.*; 3 4 import com.ives.Input; 5 public class Expression 6 { 7 private int a = (int)(Math.random() * Math.pow(10,2)-1); 8 private int b = (int)(Math.random() * Math.pow(10,2)-1); 9 private int op; 10 static int c;//使用者答案 11 int answer;//答案 12 int answer1; 13 static Scanner in=new Scanner(System.in); 14 15 public int geta() 16 { 17 return a; 18 } 19 20 public void seta(int a) 21 { 22 this.a = a; 23 } 24 25 public int getb() 26 { 27 return b; 28 } 29 30 public void setb(int b) 31 { 32 this.b = b; 33 } 34 35 public int expressionadd() 36 { 37 answer = a+b; 38 return answer; 39 } 40 public int expressionmin() 41 { 42 answer = a-b; 43 return answer; 44 } 45 public int expressionchen() 46 { 47 answer = a*b; 48 return answer; 49 } 50 public int expressionchu() 51 { 52 b = (b == 0 ? b = 1 +(int)(Math.random() * Math.pow(10,2)-1):b);//排除除法被除數為0的情況 53 answer = a/b; 54 return answer; 55 } 56 public static void main(String[] args){ 57 int answer; 58 Expression expression = new Expression(); 59 60 //answer = expression.answer; 61 //Input input = new Input(); 62 //Expression.c = input.a; 63 /*try{ 64 Expression.c = in.nextInt(); 65 } 66 catch(InputMismatchException e) 67 { System.err.println("\n錯誤! ,請你輸入一個整數"); 68 }*/ 69 //if(answer==c) 70 /* { 71 System.out.print("答對了"); 72 } 73 else System.out.print("答錯了");*/ 74 //System.out.print("answer="+answer); 75 } 76 }
輸入程式碼如下:
1 package com.ives; 2 import java.util.*; 3 4 public class Input { 5 public int a; 6 static Scanner in=new Scanner(System.in); 7 public void seta(int intput){ 8 a = intput; 9 } 10 public Input() 11 { 12 try{ 13 a = in.nextInt(); 14 } 15 catch(InputMismatchException e) 16 { 17 System.err.println("\n錯誤! 請你輸入一個整數!\n"); 18 } 19 } 20 public int getinput() 21 { 22 return a; 23 } 24 25 }
執行截圖如下:
這裡點選再來會重新出題.
這次的單元測試和5.1的一樣的。
個人體會:
這次做這個5.2的實在有點。。。因為小夥伴的組織的工作實在有點忙,不過最終還是完成了,不是有句話說,有志者事竟成咩。時間擠一擠總會有的。這奧次5.2的作業老師是有提到用測試驅動開發做的。什麼是測試驅動開發呢?這是一種開發模型,就是在編寫程式碼前先寫測試的程式碼,然後在編寫核心程式碼。開始的時候我以為是測試驅動,開發。其實原來是測試-驅動-開發。就是測試促進開發。對於這種敏捷開發的極限程式設計開發模型,我會在以後的開發裡面嘗試使用下這種開發模型的。
我會嘗試下把這個計算功能做成一個app的,大家期待吧。~
-----------------此次的作業報告到此結束,謝謝老師審閱-----------------------