Java TreeSet remove() method

The remove() method of TreeSet class is used to delete/remove elements from the set.

Syntax:

Parameter:

o - element to be removed from the set.

Return:

It returns true if set contain specified element

Example 1

import java.util.*;
public class TreeSetremove1
{
  public static void main(String as[]){
  TreeSet <Integer>obj = new TreeSet<Integer>();
  obj.add(2);	
  obj.add(8);
  obj.add(5);
  obj.add(1);
  obj.add(10);
  System.out.println("TreeSet: " +obj);
  System.out.println("TreeSet: " +obj.remove(5));
  System.out.println("TreeSet: " +obj);
  }
)

Output:

TreeSet: [ 1, 2, 5, 8, 10 ]
TreeSet: true
TreeSet: [1, 2, 8, 10 ]

Example 2

import java.util.*;
public class TreeSetremove2
{
  public static void main(String as[]){
  TreeSet <String> obj = new TreeSet<String>();
  obj.add("B");	
  obj.add("b");
  obj.add("A");
  obj.add("a");
  System.out.println("TreeSet: " +obj);
  System.out.println("TreeSet: " +obj.remove("B"));
  System.out.println("TreeSet: " +obj);
  }
}

Output:

TreeSet: [ A, B, a, b ]
TreeSet: true
TreeSet: [A, a, b ]

Example 3

import java.util.*;
public class TreeSetremove3
{
  public static void main(String as[]){
  TreeSet <String> obj = new TreeSet<String>();
  TreeSet <Integer> obj1 = new TreeSet<Integer>();
  obj.add("B");	
  obj.add("b");
  obj.add("A");
  obj.add("a");
  obj1.add(6);
  obj1.add(3);
  obj1.add(9);
  obj1.add(1);
  System.out.println("TreeSet: " +obj+" "+obj1);
  System.out.println("TreeSet: " +obj1.remove(3));
  System.out.println("TreeSet: " +obj+" "+obj1);
  System.out.println("TreeSet: " +obj.remove("A"));
  System.out.println("TreeSet: " +obj+" "+obj1);
  ;
  }
}

Output:

TreeSet: [ A, B, a, b ] [ 1, 3, 6, 9 ]
TreeSet: true
TreeSet: [ A, B, a, b ] [ 1, 6, 9 ]
TreeSet: true
TreeSet: [ B, a, b ] [ 1, 6, 9 ]

Example 4

import java.util.*;
public class TreeSetremove4
{
  public static void main(String as[]){
  TreeSet <String> obj = new TreeSet<String>();
  obj.add("B");	
  obj.add("b");
  obj.add("A");
  obj.add("a");
  obj.add("6");
  obj.add("3");
  obj.add("9");
  obj.add("1");
  System.out.println("TreeSet: " +obj);
  System.out.println("TreeSet: " +obj.remove("10"));
  System.out.println("TreeSet: " +obj);
  }
}

Output:

Javac TreeSetremove4.java
Java TreeSetremove4
TreeSet: [1, 3, 6, 9, A, B, a, b]
TreeSet: false
TreeSet: [1, 3, 6, 9, A, B, a, b]

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Java TreeSet remove() method

Syntax:

Parameter:

Return:

Example 1

Example 2

Example 3

Example 4

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Java TreeSet remove() method

Syntax:

Parameter:

Return:

Example 1

Example 2

Example 3

Example 4

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