Java怎么把二维数组转成父子树

Question

Java怎么把二维数组

    static String [][] strings = {
            {"A","A2","A21"},
            {"A","A3","A31"},
            {"A","A3","A4"},
            {"b","B1","B11"},
            {"c","c1","c11"},
            {"d","d1","d11","d111"}
    };

转成父子树，子数组第一个元素是第二个元素的父节点,第2个元素是第3个元素的父节点,第3个元素是第4个元素的父节点,以此类推。想要的树结构如下：

Answer 1

那你要先定义一个类似链表一样的结构，但是每一层不是一个node而是个node数组
或者利用本身已有的控件，比如treeview之类的东西来存