Java

Jagged-Array in Java

A jagged array is an array of arrays such that member arrays can be of different row sizes and column sizes. Jagged subarrays may also be null. For instance, the following code declares and populates a two dimensional int array whose first subarray is of four length, second subarray is of three length, and the last subarray is a fours length array:

Example

int [ ] [ ] a = { { 10,20,30,40 } , { 10,20,30 } , { 10,20,30,50 } } ;

Code Snippet

//Jagged-Array in Java

public class App {
    public static void main(String args[]) {
        // Jagged Array using For Loop in Java Programming
        int a[][] = {
                { 10, 20, 30, 40 }, // 4
                { 10, 20, 30 }, // 3
                { 10, 20, 30, 50 }// 4
        };

        for (int i = 0; i < a.length; i++) {
            for (int j = 0; j < a[i].length; j++) {
                System.out.print(" " + a[i][j]);
            }
            System.out.println("");
        }
    }
}