package?test;

import?java.util.ArrayList;
import?java.util.Collections;
import?java.util.Comparator;
import?java.util.HashMap;
import?java.util.List;
import?java.util.Map;
import?java.util.Map.Entry;

public?class?TestRecommend?{

????public?static?void?main（String[]?args）?{
????	//
	????Map>?userPerfMap?=?new?HashMap>（）;
	????Map?pref1?=?new?HashMap（）;
	????pref1.put（“A“?3）;
	????pref1.put（“B“?4）;
	????pref1.put（“C“?3）;
	????pref1.put（“D“?5）;
	????pref1.put（“E“?1）;
	????pref1.put（“F“?4）;
	????userPerfMap.put（“p1“?pref1）;
	????Map?pref2?=?new?HashMap（）;
	????pref2.put（“A“?2）;
	????pref2.put（“B“?4）;
	????pref2.put（“C“?4）;
	????pref2.put（“D“?5）;
	????pref2.put（“E“?3）;
	????pref2.put（“F“?2）;
	????userPerfMap.put（“p2“?pref2）;
	????Map?pref3?=?new?HashMap（）;
	????pref3.put（“A“?3）;
	????pref3.put（“B“?5）;
	????pref3.put（“C“?4）;
	????pref3.put（“D“?5）;
	????pref3.put（“E“?2）;
	????pref3.put（“F“?1）;
	????userPerfMap.put（“p3“?pref3）;
	????Map?pref4?=?new?HashMap（）;
	????pref4.put（“A“?2）;
	????pref4.put（“B“?2）;
	????pref4.put（“C“?3）;
	????pref4.put（“D“?4）;
	????pref4.put（“E“?3）;
	????pref4.put（“F“?2）;
	????userPerfMap.put（“p4“?pref4）;
	????Map?pref5?=?new?HashMap（）;
	????pref5.put（“A“?4）;
	????pref5.put（“B“?4）;
	????pref5.put（“C“?4）;
	????pref5.put（“D“?5）;
	????pref5.put（“E“?1）;
	????pref5.put（“F“?0）;
	????userPerfMap.put（“p5“?pref5）;
	????Map?simUserSimMap?=?new?HashMap（）;
	????String?output1?=?“皮爾遜相關系數:“?output2?=?“歐幾里得距離:“;
	????for?（Entry>?userPerfEn?:?userPerfMap.entrySet（））?{
	????????String?userName?=?userPerfEn.getKey（）;
	????????if?（!“p5“.equals（userName））?{
	????????double?sim?=?getUserSimilar（pref5?userPerfEn.getValue（））;
	????????double?distance?=?getEuclidDistance（pref5?userPerfEn.getValue（））;
	????????output1?+=?“p5與“?+?userName?+?“之間的相關系數:“?+?sim?+?““;
	????????output2?+=?“p5與“?+?userName?+?“之間的距離:“?+?distance?+?““;
	????????simUserSimMap.put（userName?sim）;
	????????}
	????}
	????System.out.println（output1）;
	????System.out.println（output2）;
	????Map>?simUserObjMap?=?new?HashMap>（）;
	????Map?pobjMap1?=?new?HashMap（）;
	????pobjMap1.put（“一夜驚喜“?3）;
	????pobjMap1.put（“環太平洋“?4）;
	????pobjMap1.put（“變形金剛“?3）;
	????simUserObjMap.put（“p1“?pobjMap1）;
	????Map?pobjMap2?=?new?HashMap（）;
	????pobjMap2.put（“一夜驚喜“?5）;
	????pobjMap2.put（“環太平洋“?1）;
	????pobjMap2.put（“變形金剛“?2）;
	????simUserObjMap.put（“p2“?pobjMap2）;
	????Map?pobjMap3?=?new?HashMap（）;
	????pobjMap3.put（“一夜驚喜“?2）;
	????pobjMap