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

How to Rotate Items in a Vector in Java ?

Answer

To rotate items in a Vector in Java using java.util.Vector, you can manually rotate the elements by moving them within the Vector.

✐ Examples

1 Rotate Items in Vector to the Left

In this example,

First, you create a Vector containing the elements you want to rotate.
Next, you specify the number of positions to rotate the items to the left.
Then, you iterate through the Vector and manually move each element to its new position after rotation.

Java Program

import java.util.Vector;

public class Main {
    public static void main(String[] args) {
        // Create a Vector containing elements
        Vector<Integer> vector = new Vector<>();
        vector.add(1);
        vector.add(2);
        vector.add(3);
        vector.add(4);
        vector.add(5);

        // Specify the number of positions to rotate the items to the left
        int rotateBy = 2;

        // Rotate the items to the left by the specified number of positions
        for (int i = 0; i < rotateBy; i++) {
            Integer firstElement = vector.remove(0);
            vector.add(firstElement);
        }

        // Print the rotated Vector
        System.out.println(vector);
    }
}

Output

[3, 4, 5, 1, 2]

2 Rotate Items in Vector to the Right

In this example,

Create a Vector containing elements.
Specify the number of positions to rotate the items to the right.
Iterate through the Vector and manually move each element to its new position after rotation.

Java Program

import java.util.Vector;

public class Main {
    public static void main(String[] args) {
        // Create a Vector containing elements
        Vector<Integer> vector = new Vector<>();
        vector.add(1);
        vector.add(2);
        vector.add(3);
        vector.add(4);
        vector.add(5);

        // Specify the number of positions to rotate the items to the right
        int rotateBy = 2;

        // Rotate the items to the right by the specified number of positions
        for (int i = 0; i < rotateBy; i++) {
            Integer lastElement = vector.remove(vector.size() - 1);
            vector.add(0, lastElement);
        }

        // Print the rotated Vector
        System.out.println(vector);
    }
}

Output

[4, 5, 1, 2, 3]

Summary

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

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

How to Rotate Items in a Vector in Java ?

Answer

✐ Examples

1 Rotate Items in Vector to the Left

Java Program

Output

2 Rotate Items in Vector to the Right

Java Program

Output

Summary

More Java Vectors Tutorials