How to Access Items in a Vector in Java - Step by Step Examples

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How to Access Items in a Vector in Java ?

Answer

To access items in a Vector in Java using java.util.Vector, you can use indexing and iteration.

✐ Examples

1 Access Single Element by Index

In this example,

We import the java.util.Vector class to use the Vector container.
We create a Vector named myVector containing some elements.
We access a single element from the Vector using the get method and specify the index of the element we want to access.
The element at the specified index is returned.
We print the accessed element to the console.

Java Program

import java.util.Vector;

public class Main {
    public static void main(String[] args) {
        Vector<String> myVector = new Vector<>();
        myVector.add("apple");
        myVector.add("banana");
        myVector.add("cherry");
        myVector.add("date");

        // Access single element by index (e.g., index 1)
        String accessedElement = myVector.get(1);

        // Print accessed element
        System.out.println(accessedElement);
    }
}

Output

banana

2 Access Multiple Elements by Index

In this example,

We import the java.util.Vector class to use the Vector container.
We create a Vector named myVector containing some elements.
We use a loop to iterate through a range of indices and access multiple elements from the Vector.
The elements within the specified range are printed to the console.

Java Program

import java.util.Vector;

public class Main {
    public static void main(String[] args) {
        Vector<String> myVector = new Vector<>();
        myVector.add("apple");
        myVector.add("banana");
        myVector.add("cherry");
        myVector.add("date");

        // Access multiple elements by indices (e.g., indices 0 to 2)
        for (int i = 0; i <= 2; i++) {
            System.out.println(myVector.get(i));
        }
    }
}

Output

apple
banana
cherry

3 Access Elements Using Enumeration

In this example,

We import the java.util.Vector and java.util.Enumeration classes to use the Vector container and enumeration.
We create a Vector named myVector containing numeric elements.
We use an enumeration to iterate through and access elements from the Vector.
The elements are accessed sequentially using the enumeration.

Java Program

import java.util.Vector;
import java.util.Enumeration;

public class Main {
    public static void main(String[] args) {
        Vector<Integer> myVector = new Vector<>();
        myVector.add(10);
        myVector.add(20);
        myVector.add(30);
        myVector.add(40);
        myVector.add(50);

        // Access elements using enumeration
        Enumeration<Integer> enumeration = myVector.elements();
        while (enumeration.hasMoreElements()) {
            System.out.println(enumeration.nextElement());
        }
    }
}

Output

Summary

In this tutorial, we learned How to Access Items in a Vector in Java language with well detailed examples.

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How to Access Items in a Vector in Java - Step by Step Examples

How to Access Items in a Vector in Java ?

Answer

✐ Examples

1 Access Single Element by Index

Java Program

Output

2 Access Multiple Elements by Index

Java Program

Output

3 Access Elements Using Enumeration

Java Program

Output

Summary

More Java Vectors Tutorials