treenode.java

Genetic Programming。GP算法在方程逼近求解上的应用。

public abstract class TreeNode implements Cloneable{


         public abstract String toString(int level);

         abstract String getName();

         String indent(int level) {
                 String s = new String();
                 for (int i = 0; i < level; i++) {
                         s = s + "  ";
                 }
                 return s;
         }

         abstract double eval(double x);

         abstract int countNodes();

         abstract int countNodes(Condition cond);

         abstract protected Object clone();
 }