condition.java

Genetic Programming。GP算法在方程逼近求解上的应用。

  /**
  * Just a helper class.
  */
public  abstract class Condition {
          abstract boolean test(TreeNode p);
  }

  /**
  *
  */
  class IsTreeNode extends Condition {
          boolean test(TreeNode p) { return (p instanceof TreeNode); }
  }

  /**
  *
  */
  class IsFunction extends Condition {
          boolean test(TreeNode p) { return (p instanceof Function); }
  }