testmethodoverloading.java

此源码为机械工业出版社出版的《Java语言程序设计》第三版所配套的书中所有源代码。

// TestMethodOverloading.java: Demonstrate method overloading
public class TestMethodOverloading
{
  // Main method
  public static void main(String[] args)
  {
    // Invoke the max method with int parameters
    System.out.println("The maximum between 3 and 4 is "
      + max(3, 4));

    // Invoke the max method with the double parameters
    System.out.println("The maximum between 3.0 and 5.4 is "
      + max(3.0, 5.4));

    // Invoke the max method with three double parameters
    System.out.println("The maximum between 3.0, 5.4, and 10.14 is "
      + max(3.0, 5.4, 10.14));
  }

  // Find the max between two int values
  static int max(int num1, int num2)
  {
    if (num1 > num2)
      return num1;
    else
      return num2;
  }

  // Find the max between two double values
  static double max(double num1, double num2)
  {
    if (num1 > num2)
      return num1;
    else
      return num2;
  }

  // Find the max among three double values
  static double max(double num1, double num2, double num3)
  {
    return max(max(num1, num2), num3);
  }
}