Web Reference: Nov 13, 2025 · In Java, a Jagged array is a multidimensional array where each row can have a different number of columns. When we work with a jagged array, one thing to keep in mind is that the inner array can be of different lengths. It is like a 2D array, but each row can have a different number of elements. In computer science, a jagged array, also known as a ragged array[1] or irregular array[2] is an array of arrays of which the member arrays can be of different lengths, [3] producing rows of jagged edges when visualized as output. A jagged array is an array of arrays such that the member arrays can be of different sizes. We can create a 2-D (multi-dimensional) array but with a variable number of columns in each row.
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