public static boolean find(Tree node, int value) {
count++;
if (value == node.getValue()) {
System.out.println(count);
return true;
}
if (value < node.getValue() && node.getLeft() != null) {
return find(node.getLeft(), value);
}
if (value > node.getValue() && node.getRight() != null) {
return find(node.getRight(), value);
}
return false;
}
public static void insert(Tree node, int value) {
if (node.left == null && node.right == null && node.getValue() == 0) {
node.setValue(value);
return;
}
Tree newNode = new Tree();
newNode.setValue(value);
if (value < node.getValue() && node.getLeft() == null) {
node.setLeft(newNode);
return;
} else if (value < node.getValue() && node.getLeft() != null) {
insert(node.getLeft(), value);
} else if (value > node.getValue() && node.getRight() == null) {
node.setRight(newNode);
return;
} else if (value > node.getValue() && node.getRight() != null) {
insert(node.getRight(), value);
}
return;
}
@Override
public boolean acceptsChild(Tree<JsonTreeNode> child) {
// Only non-null children are allowed.
if (child == null) {
return false;
}
// Only arrays or objects can have children.
if (getValue().getType() != JsonTreeNode.ElementType.ARRAY
&& getValue().getType() != JsonTreeNode.ElementType.OBJECT) {
return false;
}
// Additionally, only objects can have child key-value pairs.
if (getValue().getType() == JsonTreeNode.ElementType.ARRAY
&& child.getValue().getType() == JsonTreeNode.ElementType.KEY_VALUE_PAIR) {
return false;
}
return true;
}
/* Search for n in a tree t, and return the subtree whose root is n
* If n does not occur in the tree, throw an exception.
*/
public static Tree find(int n, Tree t) {
if (t.getEmpty()) throw new IllegalArgumentException("Value not present in search" + " tree");
else if (n == t.getValue()) return t;
else if (n < t.getValue()) return find(n, t.getLeft());
else return find(n, t.getRight());
}
/* Insert n into a tree t in order, and return the resulting tree.
*/
public static Tree insert(int n, Tree t) {
if (t.getEmpty()) return new Tree(n, new Tree(), new Tree());
else if (n <= t.getValue()) return new Tree(t.getValue(), insert(n, t.getLeft()), t.getRight());
else return new Tree(t.getValue(), t.getLeft(), insert(n, t.getRight()));
}
/** Test method for {@link com.fuerve.whiteboard.milestone2.structures.Tree#getValue()}. */
@Test
public void testGetSetValue() {
final Tree<Integer> target = new Tree<Integer>();
target.setValue(1);
assertEquals(new Integer(1), target.getValue());
}