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Remove specified element from TreeSet in Java
Use the remove() method to remove specified elements from TreeSet.
At first, create a TreeSet and add elements −
TreeSet<String> set = new TreeSet<String>(); set.add("34"); set.add("12"); set.add("67"); set.add("54"); set.add("76"); set.add("49");
Now, remove the specified element i.e. 34 here −
set.remove("34")
The following is an example to remove specified element from TreeSet −
Example
import java.util.*; public class Demo { public static void main(String args[]){ TreeSet<String> set = new TreeSet<String>(); set.add("34"); set.add("12"); set.add("67"); set.add("54"); set.add("76"); set.add("49"); System.out.println("TreeSet elements..."); Iterator<String> i = set.iterator(); while(i.hasNext()) { System.out.println(i.next()); } System.out.println("Removed element 34 from the TreeSet ? " + set.remove("34")); System.out.println("Updated TreeSet elements..."); i = set.iterator(); while(i.hasNext()) { System.out.println(i.next()); } } }
Output
TreeSet elements... 12 34 49 54 67 76 Removed element 34 from the TreeSet ? true Updated TreeSet elements... 12 49 54 67 76
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