zerodivideexception.java

JAVA 2入门经典 练习答案

// Chapter 7 Exercise 2

// ZeroDivideException class

public class ZeroDivideException extends Throwable {
  private int index = -1;	// Index of array element causing error.

  // Default Constructor:
  public ZeroDivideException(){}

  // Standard constructor:
  public ZeroDivideException(String s) {
    super(s);			// Call the base constructor.
  }

  public ZeroDivideException(int index) {
    super("/ by zero");		// Call the base constructor.
    this.index = index;		// Set the index value.
  }

  // Get the array index value for the error:
  public int getIndex() {
    return index;		// Return the index value.
  }
}