max.java

Java 入门书的源码

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

/* Finds the maximum of numbers
 * entered by the user.
 */

import iopack.Io;
public class Max {
  public static void main(String [] args) {
    double number;            // the next number 
    double maxSoFar;       //  the max so far
                     
    System.out.println("Enter nonnegative floating-point numbers");
    System.out.println("Enter a negative number to terminate the input");
    number = Io.readDouble("Enter the first number");
    if (number >= 0) {
      maxSoFar = number;
      while (number >= 0) {
      number = Io.readDouble("Enter the next number");
        if (number > maxSoFar) 
          maxSoFar = number;
        }
      System.out.println("The maximum is " + maxSoFar);
    }
    else
      System.out.println("No input provided");
      Io.readString("Press any key to exit");   // Added for IDE use
  }
}