import java.util.Iterator; import java.util.LinkedHashMap; import java.util.Map; public class Demo { public static void main(String[] args) { Map<String, String>map = new LinkedHashMap<>(); map.put("Jack","0"); map.put("Tim", "1"); map.put("David","2"); map.put("Tom", "3"); map.put("Kevin", "4"); map.put("Jeff", "5"); map.put("Katie","6"); map.put("Steve", "7"); map.put("Andrew", "8"); map.put("Angelina", "9"); String str = (String) map.get("David"); System.out.println("Rank of David = " + str); Iterator iterator = map.keySet().iterator(); while (iterator.hasNext()) { String resKey = (String) iterator.next(); System.out.println("Rank of " + resKey + " is " + map.get(resKey)); } } }
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