Aprende Iteración en una Array Bidimensional

How to Iterate Inside Two-Dimensional Array Using a for-loop?

¿Cómo iterar dentro de un array bidimensional usando un loop for?

Main.java


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package com.example;

public class Main {
    public static void main(String[] args) {
        int[][] twoDimensionalArray = { {1, 2, 3, 4},
                                        {5, 6, 7, 8},
                                        {9, 10, 11, 12},
                                        {13, 14, 15, 16} };
        for (int i = 0; i < twoDimensionalArray.length; i++) {
            for (int j = 0; j < twoDimensionalArray[0].length; j++) {
                System.out.print(twoDimensionalArray[i][j] + " ");
            }
          System.out.println();
        }
    }
}

Let's delve into the meaning of each element in the code snippet provided above:

int[][] twoDimensionalArray = - This line initializes a two-dimensional array;
for (int i = 0; i < twoDimensionalArray.length; i++) - The first for-loop iterates over the rows of our matrix. While we're on the first row, our program enters the nested loop, which doesn't impact the outer loop. The variable i represents the current row number;
for (int j = 0; j < twoDimensionalArray[0].length; j++) - The second for-loop iterates over the columns of the matrix. While we're on the 0th row, we iterate through the columns of that row. The variable j represents the current column number;
System.out.print(twoDimensionalArray[i][j] + " "); - In this line, we use System.out.print to display our values in a single line. Let's see how it operates: while we're on the 0th row, we iterate through the columns on that row. For example, array[0][1], followed by array[0][2], and so on. We continue through the columns as long as j is less than array[0].length. Once we reach array[0].length, we return to the outer array and move to the first row. For example, array[0][3] -> array[1][0]. We've reached our boundaries and then transitioned to row 1.

Tarea

Swipe to start coding

Your task is to locate and display the diagonal (from the top-left corner to the bottom-right corner) of the provided matrix on the screen:

Note

The diagonal represents a line in the matrix where the row and column numbers are identical.

Solución

solution.java

¿Todo estuvo claro?

¡Gracias por tus comentarios!

Sección 4. Capítulo 5

single

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How to Iterate Inside Two-Dimensional Array Using a for-loop?

¿Cómo iterar dentro de un array bidimensional usando un loop for?

Main.java


              12345678910111213141516
            
package com.example;

public class Main {
    public static void main(String[] args) {
        int[][] twoDimensionalArray = { {1, 2, 3, 4},
                                        {5, 6, 7, 8},
                                        {9, 10, 11, 12},
                                        {13, 14, 15, 16} };
        for (int i = 0; i < twoDimensionalArray.length; i++) {
            for (int j = 0; j < twoDimensionalArray[0].length; j++) {
                System.out.print(twoDimensionalArray[i][j] + " ");
            }
          System.out.println();
        }
    }
}

Let's delve into the meaning of each element in the code snippet provided above:

int[][] twoDimensionalArray = - This line initializes a two-dimensional array;
for (int i = 0; i < twoDimensionalArray.length; i++) - The first for-loop iterates over the rows of our matrix. While we're on the first row, our program enters the nested loop, which doesn't impact the outer loop. The variable i represents the current row number;
for (int j = 0; j < twoDimensionalArray[0].length; j++) - The second for-loop iterates over the columns of the matrix. While we're on the 0th row, we iterate through the columns of that row. The variable j represents the current column number;
System.out.print(twoDimensionalArray[i][j] + " "); - In this line, we use System.out.print to display our values in a single line. Let's see how it operates: while we're on the 0th row, we iterate through the columns on that row. For example, array[0][1], followed by array[0][2], and so on. We continue through the columns as long as j is less than array[0].length. Once we reach array[0].length, we return to the outer array and move to the first row. For example, array[0][3] -> array[1][0]. We've reached our boundaries and then transitioned to row 1.

Tarea

Swipe to start coding

Your task is to locate and display the diagonal (from the top-left corner to the bottom-right corner) of the provided matrix on the screen:

Note

The diagonal represents a line in the matrix where the row and column numbers are identical.

Solución

solution.java

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¿Todo estuvo claro?

¡Gracias por tus comentarios!

Sección 4. Capítulo 5

single

Iteración en una Array Bidimensional

How to Iterate Inside Two-Dimensional Array Using a for-loop?

¿Cómo iterar dentro de un array bidimensional usando un loop for?

Solución

Awesome!

Iteración en una Array Bidimensional

How to Iterate Inside Two-Dimensional Array Using a for-loop?

¿Cómo iterar dentro de un array bidimensional usando un loop for?

Solución

Awesome!