public class MyGraph<V,E> extends SparseMultigraph<V,E>{
private ArrayList<MyNode> myNodeList;
public MyNode getNode(int nodeId){
myNodeList = new ArrayList<MyNode>();
myNodeList = (ArrayList<MyNode>)this.getVertices();
int i;
public class MyGraph<V,E> extends SparseMultigr
阅读背景：
Java -如何将类型集合转换为ArrayList?
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