Java数据结构第七课：图的实现。包括初始化图，添加边，删除边，及深度优先遍历和广度优先遍历算法。-Java Data Structure Lesson: Figure of the implementation. Including the initialization graph, add edge, remove edge, and depth-first traversal and breadth-first traversal algorithm.

实现对图的遍历。数据结构算法的实现。编写语言为java。-Realize the graph traversal. Data structure algorithm. Written language is java.