import java.util.TreeMap;
public class FirstMethod {
public static void main(String[] args) {
// TODO Auto-generated method stub
TreeMap<String, Integer> lhm1 = new TreeMap<>();
lhm1.put("One", 1);
lhm1.put("Two", 2);
lhm1.put("Three", 3);
lhm1.put("Four", 4);
lhm1.put("Five", 5);
lhm1.put("Six", 6);
lhm1.put("Seven", 7);
lhm1.put("Eight", 8);
System.out.println("Full-List : "+lhm1);
System.out.println("firstEntry() : "+lhm1.firstKey());
System.out.println("firstEntry() : "+lhm1.firstEntry());
System.out.println("pollFirstEntry() : "+lhm1.pollFirstEntry());
System.out.println("Full-List : "+lhm1);
}
}
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