Java Vector removeElement() Method with Examples

by Online Tutorials Library July 22, 2022

Java Vector removeElement() Method

The removeElement() method of Java Vector class is used to remove the first (lowest-indexed) occurrence of the argument from this vector. Removing an element decreases the vector size by one.

Syntax

Following is the declaration of removeElement() method:

Parameter

Parameter	Description	Required/Optional
obj	It is an element which will be removed from the vector.	Required

Return

The removeElement() method returns true if the argument was a component of the vector, otherwise returns false.

Exceptions

Compatibility Version

Java 1.2 and above

Example 1

  import java.util.*;  public class VectorRemoveElementExample1 {    public static void main(String arg[]) {      //Create an empty vector         Vector<Integer> vec = new Vector<>();       // Add elements in the vector      vec.add(1);      vec.add(2);      vec.add(3);      vec.add(4);      vec.add(5);      vec.add(6);      System.out.println(“Vector element before removal: ” + vec);      //Remove an element      vec.removeElement(5);          //Checking vector and displays the element      System.out.println(“Vector element after removal: ” + vec);      }              }  

Test it Now

Output:

Vector element before removal: [1, 2, 3, 4, 5, 6]  Vector element after removal: [1, 2, 3, 4, 6]

Example 2

  import java.util.*;  public class VectorRemoveElementExample2 {    public static void main(String arg[]) {  //Create an empty Vector  Vector<String> vec = new Vector<>();  //Add elements to the Vector  vec.add(“Rahul”);  vec.add(“Karan”);  vec.add(“Rahul”);  vec.add(“Rohan”);  //Printing the elements of the Vector  System.out.println(“The elements of a Vector before remove: “+vec);  //Removing the “Rahul” from the Vector  boolean b = vec.removeElement(“Rahul”);  System.out.println(“Is the removal successful?? “+b);  //Printing the elements of the Vector  System.out.println(“The elements of the Vector after remove: “+vec);      }              }  

Test it Now

Output:

The elements of a Vector before remove: [Rahul, Karan, Rahul, Rohan]  Is the removal successful?? true  The elements of the Vector after remove: [Karan, Rahul, Rohan]

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