import java.util.HashMap; import java.util.Map; import java.util.TreeMap; public class Demo { public static void main(String[] a) { Map<String, String>map = new HashMap<String, String>(); map.put("1", "A"); map.put("2", "B"); map.put("3", "C"); map.put("4", "D"); map.put("5", "E"); map.put("6", "F"); map.put("7", "G"); map.put("8", "H"); map.put("9", "I"); Map<String, String>sorted = new TreeMap<String, String>(map); System.out.println("Sorted Map = "+sorted); } }
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