How to create a Two Dimensional Vector in Java - Step by Step Examples

How to create a Two Dimensional Vector in Java ?

Answer

To create a two-dimensional vector in Java using java.util.Vector, you can use a Vector of Vectors.


✐ Examples

1 Create a Numeric Two-Dimensional Vector

In this example,

  1. We import the necessary class: java.util.Vector.
  2. We declare a Vector named matrix to hold the two-dimensional vector, where each inner Vector represents a row of the two-dimensional vector.
  3. We initialize matrix with numeric Vectors.
  4. Finally, we print the two-dimensional vector to standard output.

Java Program

import java.util.Vector;

public class Main {
    public static void main(String[] args) {
        // Step 1: Create a numeric two-dimensional vector
        Vector<Vector<Integer>> matrix = new Vector<>();
        matrix.add(new Vector<>(Arrays.asList(1, 2, 3)));
        matrix.add(new Vector<>(Arrays.asList(4, 5, 6)));
        matrix.add(new Vector<>(Arrays.asList(7, 8, 9)));
        
        // Step 2: Print the two-dimensional vector
        System.out.println(matrix);
    }
}

Output

[[1, 2, 3], [4, 5, 6], [7, 8, 9]]

2 Create a String Two-Dimensional Vector

In this example,

  1. We import the necessary class: java.util.Vector.
  2. We declare a Vector named matrix to hold the two-dimensional vector, where each inner Vector represents a row of the two-dimensional vector.
  3. We initialize matrix with String Vectors.
  4. Finally, we print the two-dimensional vector to standard output.

Java Program

import java.util.Vector;

public class Main {
    public static void main(String[] args) {
        // Step 1: Create a string two-dimensional vector
        Vector<Vector<String>> matrix = new Vector<>();
        matrix.add(new Vector<>(Arrays.asList("a", "b", "c")));
        matrix.add(new Vector<>(Arrays.asList("d", "e", "f")));
        matrix.add(new Vector<>(Arrays.asList("g", "h", "i")));
        
        // Step 2: Print the two-dimensional vector
        System.out.println(matrix);
    }
}

Output

[[a, b, c], [d, e, f], [g, h, i]]

Summary

In this tutorial, we learned How to create a Two Dimensional Vector in Java language with well detailed examples.


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  27. How to Sort a Vector in Descending Order in Java ?
  28. How to create a Two Dimensional Vector in Java ?
  29. How to Iterate over a Two Dimensional Vector in Java ?
  30. How to create a Three Dimensional Vector in Java ?
  31. How to Copy a Vector in Java ?
  32. How to Split a Vector in Java ?
  33. How to Join Vectors in Java ?
  34. How to Append an Item to a Vector in Java ?
  35. How to Insert an Item at Specific Index in a Vector in Java ?
  36. How to Append a Vector to another Vector in Java ?
  37. How to Concatenate Two Vectors in Java ?
  38. How to check if Two Vectors are Equal in Java ?
  39. How to check if Two Vectors have Same Items (Regardless of Order) in Java ?
  40. How to Convert a Vector of Integers to a Vector of Strings in Java ?
  41. How to Convert a Vector of Strings to a Vector of Integers in Java ?
  42. How to Convert a Vector of Floats to a Vector of Strings in Java ?
  43. How to Convert a Vector of Strings to a Vector of Floats in Java ?
  44. How to Reverse a Vector in Java ?
  45. How to Shuffle a Vector in Java ?
  46. How to Slice a Vector in Java ?
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  48. How to get Last N Items from a Vector in Java ?
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  50. How to Filter Items of a Vector based on a Condition in Java ?
  51. How to Remove Duplicates in a Vector in Java ?
  52. How to Remove Item at a Specific Index from a Vector in Java ?
  53. How to Remove Specific Item from a Vector in Java ?
  54. How to Remove Items from Vector based on a Condition in Java ?
  55. How to Sort a String Vector in Dictionary Order in Java ?
  56. How to Concatenate Strings in Vector in Java ?
  57. How to create a Vector of Vectors in Java ?