TreeMaps
import java.util.*;
public class TreeMaps {
public static void main(String[] args) {
TreeMap<String, Integer> tm = new TreeMap<>();
tm.put("China", 150);
tm.put("India", 100);
tm.put("UK", 50);
tm.put("USA", 75);
tm.put("Austria", 10);
System.out.println(tm);
}
}
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