Java Collection, TreeSet Exercises: Remove a given element from a tree set
Java Collection, TreeSet Exercises: Exercise-16 with Solution
Write a Java program to remove a given element from a tree set.
Sample Solution:
Java Code:
import java.util.TreeSet;
import java.util.Iterator;
public class Exercise16 {
public static void main(String[] args) {
// creating TreeSet
TreeSet <Integer>tree_num = new TreeSet<Integer>();
TreeSet <Integer>treeheadset = new TreeSet<Integer>();
// Add numbers in the tree
tree_num.add(10);
tree_num.add(22);
tree_num.add(36);
tree_num.add(25);
tree_num.add(16);
tree_num.add(70);
tree_num.add(82);
tree_num.add(89);
tree_num.add(14);
System.out.println("Original tree set: "+tree_num);
System.out.println("Removes 70 from the list: "+tree_num.remove(70));
System.out.println("Tree set after removing last element: "+tree_num);
}
}
Sample Output:
Original tree set: [10, 14, 16, 22, 25, 36, 70, 82, 89] Removes 70 from the list: true Tree set after removing last element: [10, 14, 16, 22, 25, 36, 82, 89]
Flowchart:

Java Code Editor:
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Previous: Retrieve and remove the last element of a tree set.
Next: Create a new priority queue, add some colors (string) and print out the elements of the priority queue.
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Java: Tips of the Day
getEnumMap
Converts to enum to Map where key is the name and value is Enum itself.
public static <E extends Enum<E>> Map<String, E> getEnumMap(final Class<E> enumClass) { return Arrays.stream(enumClass.getEnumConstants()) .collect(Collectors.toMap(Enum::name, Function.identity())); }
Ref: https://bit.ly/3xXcFZt
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