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Java Vector lastElement() Method

Java Vector lastElement() Method Description

The Java Vector lastElement() method is used to return the last component of the vector.

Declaration

Following is the declaration for java.util.Vector.lastElement() method

public E lastElement()
Parameters

NA

Return Value

The method call returns the last component of the vector, i.e., the component at index size() - 1.

Exception

NoSuchElementException − This exception is thrown if this vector is empty

Getting Last Element of a Vector of Integer Example

The following example shows the usage of Java Vector lastElement() method to get an element at last position in this vector. We're creating a vector of Integer and added few elements to it using add() method. Then we've printed the element at last index using lastElement() method.

package com.tutorialspoint;

import java.util.Vector;

public class VectorDemo {
   public static void main(String[] args) {

      // create an empty Vector vec with an initial capacity of 4      
      Vector<Integer> vec = new Vector<>(4);

      // use add() method to add elements in the vector
      vec.add(4);
      vec.add(3);
      vec.add(2);
      vec.add(1);

      // let us print the last element in the vector
      System.out.println("Last element: "+vec.lastElement());
   }    
}
Output

Let us compile and run the above program, this will produce the following result.

Last element: 1
Getting Last Element of a Vector of String Example

The following example shows the usage of Java Vector lastElement() method to get last element in this vector. We're creating a vector of String and added few elements to it using add() method. Then we've printed the last element using lastElement() method.

package com.tutorialspoint;

import java.util.Vector;

public class VectorDemo {
   public static void main(String[] args) {

      // create an empty Vector vec with an initial capacity of 4      
      Vector<String> vec = new Vector<>(4);

      // use add() method to add elements in the vector
      vec.add("D");
      vec.add("C");
      vec.add("B");
      vec.add("A");

      // let us print the last element in the vector
      System.out.println("Last element: "+vec.lastElement());
   }    
}
Output

Let us compile and run the above program, this will produce the following result.

Last element: A
Getting Last Element of a Vector of Object Example

The following example shows the usage of Java Vector lastElement() method to get last element in this vector. We're creating a vector of Student and added few elements to it using add() method. Then we've printed the last element using lastElement() method.

package com.tutorialspoint;

import java.util.Vector;

public class VectorDemo {
   public static void main(String[] args) {

      // create an empty Vector vec with an initial capacity of 4      
      Vector<Student> vec = new Vector<>(4);

      // use add() method to add elements in the vector
      vec.add(new Student(1, "Julie"));
      vec.add(new Student(2, "Robert"));
      vec.add(new Student(3, "Adam"));
      vec.add(new Student(4, "Jane"));	  

      // let us print the last element in the vector
      System.out.println("Last element: "+vec.lastElement());
   }    
}
class Student {
   int rollNo;
   String name;

   Student(int rollNo, String name){
      this.rollNo = rollNo;
      this.name = name;
   }

   @Override
   public String toString() {
      return "[ " + this.rollNo + ", " + this.name + " ]";
   }
   
   @Override
   public boolean equals(Object obj) {
      Student s = (Student)obj;
      return this.rollNo == s.rollNo && this.name.equalsIgnoreCase(s.name);
   }
}
Output

Let us compile and run the above program, this will produce the following result.

Last element: [ 4, Jane ]

java_util_vector.htm


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