C++ examples for template:template class
Using Multiple Parameters with Templates
#include <iostream> using namespace std; template<typename K, typename V, int S> class MyMap/*ww w . j av a 2 s. com*/ { protected: K key[S]; V value[S]; bool used[S]; int Count; int Find(K akey) { int i; for (i=0; i<S; i++) { if (used[i] == false) continue; if (key[i] == akey) { return i; } } return -1; } int FindNextAvailable() { int i; for (i=0; i<S; i++) { if (used[i] == false) return i; } return -1; } public: MyMap() { int i; for (i=0; i<S; i++) { used[i] = false; } } void Set(K akey, V avalue) { int i = Find(akey); if (i > -1) { value[i] = avalue; } else { i = FindNextAvailable(); if (i > -1) { key[i] = akey; value[i] = avalue; used[i] = true; } else cout << "Sorry, full!" << endl; } } V Get(K akey) { int i = Find(akey); if (i == -1) { return 0; } else { return value[i]; } } }; int main() { MyMap<char,int,10> mymap; mymap.Set('X',5); mymap.Set('Q',6); mymap.Set('X',10); cout << mymap.Get('X') << endl; cout << mymap.Get('Q') << endl; return 0; }