二叉树
闲来没事，学习了下二叉树
public class TreeNode {
/**
* 左边节点
*/
public TreeNode leftTree;
/**
* 右边节点
*/
public TreeNode rightTree;
/**
* 数据
*/
public int iDate;
public int parent;
public TreeNode(int i) {
// TODO Auto-generated constructor stub
this.iDate = i;
}
public void displayNode() {
}
public void add(TreeNode root, int idate) {
// parent=root;
TreeNode node = find(root, idate);
if (node != null) {
if (node.iDate < idate) {
node.rightTree = new TreeNode(idate);
node.rightTree.parent=node.iDate;
} else {
node.leftTree = new TreeNode(idate);
node.leftTree.parent=node.iDate;
}
}
}
private TreeNode find(TreeNode root, int i) {
// TODO Auto-generated method stub
if (root.iDate < i) {
if (root.rightTree != null) {
return find(root.rightTree, i);
} else {
return root;
}
} else {
if (root.leftTree != null) {
return find(root.leftTree, i);
} else {
return root;
}
}
}
}
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public class TreeTest {
public static int[] temp={7,3,9,8,10,2,1};
public static void main(String[] args) {
TreeNode node=new TreeNode(5);
for (int i = 0; i < temp.length; i++) {
node.add(node,temp[i]);
}
System.out.println(node);
// node.find(3);
}
}
