🛠 How to Fill a 2D Array In Java

 You can use nested loops to assign values:

for (int row = 0; row < matrix.length; row++) {

    for (int col = 0; col < matrix[0].length; col++) {

        matrix[row][col] = row + col;

    }

}

//matrix[0].length gives the number of columns in 2D arrays.

//matrix.length gives the number of rows in 2D arrays.

Learning 2D Arrays In Java

 Hey coders! Aarav here 👋

Today we’re diving into one of the most useful — and sometimes tricky — topics in Java: 2D arrays.

🧠 What is a 2D Array?

A 2D array is like a grid — imagine a table with rows and columns. Each cell holds a value, just like a spreadsheet. In Java, it’s basically an array of arrays.

int[][] matrix = new int[3][4]; // 3 rows, 4 columns