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Author: AvinandanBose

TreeSetDemo17.java

@@ -0,0 +1,62 @@
+package TreeSet;
+
+import java.util.TreeSet;
+import java.util.Iterator;
+import java.util.Comparator;
+
+class NewTreeComparator implements Comparator<Float> {
+
+    public int compare(Float obj1, Float obj2) {
+
+        if (((Float)obj1).equals((Float)obj2)) {
+            return -1;
+        }
+
+        // using compareTo() to ensure
+        return obj2.compareTo(obj2);
+    }
+
+    
+
+
+}
+
+// Main class
+// TreeSetDemo class
+public class TreeSetDemo17 {
+    public static void main(String[] args) {
+
+        TreeSet<Float> ts = new TreeSet<>(new NewTreeComparator());
+
+        TreeSet<Float> ts1 = new TreeSet<>(new NewTreeComparator());
+
+        ts.add(10.58f);
+        ts.add(20.78f);
+        ts.add(30.65f);
+        ts.add(10.47f);
+        ts.add(50.98f);
+        ts.add(60.65f);
+
+        ts1.add(10.55f);
+        ts1.add(20.78f);
+        ts1.add(34.65f);
+        ts1.add(45.78f);
+        ts1.add(57.98f);
+        ts1.add(99.65f);
+    
+
+        Iterator<Float> it = ts.iterator();
+        while (it.hasNext()) {
+            System.out.println(it.next());
+        }
+        //As 20.78f is present in both the treeset, it will return -1 . i.e. 
+        //it will end the iterations.
+
+        System.out.println(ts.comparator().compare( 99.65f, 10.58f)) ;
+
+        // Return 0 as both numbers are compared.
+
+        System.out.println(ts.comparator().compare(20.78f, 20.78f)) ;
+        //Return -1 as both numbers are equal.
+    }
+}