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Chapter 9. User Interface Components with Swing > Text Input - Pg. 377
Text Input 377 Listing 91 151. 152. 153. 154. 155. 156. 157. 158. 159. 160. 161. 162. 163. 164. Calculator.java (continued) if (lastCommand.equals("+")) result += x; else if (lastCommand.equals("-")) result -= x; else if (lastCommand.equals("*")) result *= x; else if (lastCommand.equals("/")) result /= x; else if (lastCommand.equals("=")) result = x; display.setText("" + result); } private private private private private } JButton display; JPanel panel; double result; String lastCommand; boolean start; java.awt.GridLayout 1.0 · GridLayout(int rows, int columns) · GridLayout(int rows, int columns, int hgap, int vgap)
