convertmenu.java

来自「Java 入门书的源码」· Java 代码 · 共 40 行

//Copyright (c) 1998, Arthur Gittleman
//This example is provided WITHOUT ANY WARRANTY either expressed or implied.

/*  Tests the structure of the program
 *  to convert length using a menu to
 *  get the user's choice.  Uses stubs
 *  for the actual conversion methods.
 */

import iopack.Io;
public class ConvertMenu {
  public static void MetricToEnglish() {
    System.out.println("Converting from meters to yds,ft,in");
  }
  public static void EnglishToMetric() {
    System.out.println("Converting from yds,ft,in to meters");
  }
  public static void main(String [] args) {
    int choice;  
    do {
      System.out.println();  
      System.out.println("Choose from the following list");
      System.out.println("1.  Convert from meters to yds,ft,in");
      System.out.println("2.  Convert from yds,ft,in to meters");
      System.out.println("3.  Quit");
      choice = Io.readInt("Enter your choice, 1, 2 or 3"); 
      switch (choice) {
        case 1:
          MetricToEnglish();
          break;
        case 2:
          EnglishToMetric();
          break;
        case 3:  System.out.println("Bye, Have a nice day"); 
      }
    } while (choice != 3);
    Io.readString("Press any key to exit");   // Added for IDE use
  }           
}