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Author: AvinandanBose

SortedMap3.java

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+import java.util.TreeMap;
+import java.util.SortedMap;
+public class SortedMap3 {
+
+    public static void main(String[] args) throws Exception{
+        //firstKey
+        SortedMap<String, Integer> map = new TreeMap<>();
+        map.put("a", 1);
+        map.put("b", 2);
+        map.put("c", 3);
+        System.out.println("Map:" + map);
+        System.out.println("First Key:" + map.firstKey());
+    }
+
+    
+}