testyesnocounter.java

Java the UML Way 书中所有源码

/*
 * TestYesNoCounter.java   E.L. 2001-05-31
 */
import javax.swing.JOptionPane;
class TestYesNoCounter { 
  public static void main(String[] args) { 
    int number = 0;
    String inputLog = ""; // logs all input
    YesNoCounter addingMachine = new YesNoCounter();
    do {
      String numberInput = JOptionPane.showInputDialog("Number of votes" +
            "\nPositive number = yes votes, negative = no, 0 = exit: ");
      inputLog += "\nInput number: " + numberInput;      
      number = Integer.parseInt(numberInput);      
      if (number > 0) addingMachine.increaseNumberOfYes(number);
      else if (number < 0) addingMachine.increaseNumberOfNo(-number);  
    } while (number != 0);
    
    JOptionPane.showMessageDialog(null, inputLog + 
      "\n\nThe result is " + addingMachine.getNumberOfYes() + 
      " yes votes and " + addingMachine.getNumberOfNo() + " no votes.");
    System.exit(0);      
  } 
} 

/* Example Run:
   
Input number: 23
Input number: -56
Input number: 101
Input number: 24
Input number: 0

The result is 148 yes votes and 56 no votes.
*/