listing9.6.java

java 完全探索的随书源码

interface Example {
  public int getPrice(int id) throws java.lang.RuntimeException;
}

class User implements Example {
  public int getPrice(int id) throws java.awt.AWTException {
    // Illegal -
    // java.awt.AWTException is not a subclass of
    // java.lang.RuntimeException
  }

  public int getPrice(int id) {
    if (id == 6) {
      throw new java.lang.IndexOutOfBoundsException();
      // Legal -
      // IndexOutOfBoundsException is derived from RuntimeException
    }
  }

  public int getPrice(int id) throws java.lang.IndexOutOfBoundsException {
    // Legal -
    // IndexOutOfBoundsException is derived from
    //RuntimeException
    if (id == 6) {
      throw new java.lang.ArrayIndexOutOfBoundsException();
        // Legal -
        // ArrayIndexOutOfBoundsException is derived from
        //     IndexOutOfBoundsException
    }
  }
}