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Java Collection Q&A » Set » key

1. Java HashSet key/value pair stackoverflow.com

Why does Java not provide functions to get at the key/value pairs in a HashSet like in Hashtable? It seems like a real pain to have to iterate over it every ...

2. Two Key HashSet? stackoverflow.com

I need a HashSet implementation where the elements are a pair of Integers
eg. Set s = { {1,2} , {3,4} , {1,4}}. Here the set s has 3 elements. This ...

3. Getting value for key in HashSet java-forums.org

Sorry. Here is my code: Set nodes = new HashSet(); Map> edges = new HashMap>(); public void addEdge(int p1, MethodNode m1, ClassNode c1, int p2, MethodNode m2, ClassNode c2) { Node n1 = new Node(p1,m1,c1); Node n2 = new Node(p2,m2,c2); nodes.add(n1); nodes.add(n2); edges.put(n1,nodes); My aim is to fetch the value of key n2 and add it to n1. but ...

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