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  1.  
  2.  
  3. import java.util.*;
  4. import java.lang.*;
  5. import java.io.*;
  6.  
  7. class BasicVectorOperations {
  8.  
  9.     public static void main(String a[]){
  10.         Vector<String> v1 = new Vector<String>();
  11.         //adding elements to the end
  12.         v1.add("First");
  13.         v1.add("Second");
  14.         v1.add("Third");
  15.         System.out.println(v1);
  16.         //adding element at specified index
  17.         v1.add(2,"Random");
  18.         System.out.println(v1);
  19.         //getting elements by index
  20.         System.out.println("Element at index 3 is: "+v1.get(3));
  21.         //getting first element
  22.         System.out.println("The first element of this vector is: "+v1.firstElement());
  23.         //getting last element
  24.         System.out.println("The last element of this vector is: "+v1.lastElement());
  25.         //how to check vector is empty or not
  26.         System.out.println("Is this vector empty? "+v1.isEmpty());
  27.     }
  28. }
Success #stdin #stdout 0.04s 4386816KB
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stdin
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Standard input is empty
stdout
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[First, Second, Third]
[First, Second, Random, Third]
Element at index 3 is: Third
The first element of this vector is: First
The last element of this vector is: Third
Is this vector empty? false
https://ideone.com/QR67yN
language:
Java (HotSpot 12)
created:
7 years ago
visibility:
secret

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