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array-of- arrays double [][] in C#?
Arrays of arrays in C# are known as Jagged Arrays. To declare jagged arrays, use the double [ ][ ].
Let us now declare them −
int [][] marks;
Now, let us initialize it, wherein marks are arrays of 5 integers −
int[][] marks = new int[][]{new int[]{ 90,95 },new int[]{ 89,94 }, new int[]{ 78,87 },new int[]{ 76, 68 }, new int[]{ 98, 91 } };
Example
Let us now see the complete example of jagged arrays in C# and learn how to implement it −
using System; namespace MyApplication { class MyDemoClass { static void Main(string[] args) { int i, j; /* jagged array of 5 array of integers */ int[][] marks = new int[][]{new int[]{90,95},new int[]{89,94}, new int[]{78,87},new int[]{ 76, 68 }, new int[]{ 98, 91}}; for (i = 0; i < 5; i++) { for (j = 0; j < 2; j++) { Console.WriteLine("marks[{0}][{1}] = {2}", i, j, marks[i][j]); } } Console.ReadKey(); } } }
Output
marks[0][0] = 90 marks[0][1] = 95 marks[1][0] = 89 marks[1][1] = 94 marks[2][0] = 78 marks[2][1] = 87 marks[3][0] = 76 marks[3][1] = 68 marks[4][0] = 98 marks[4][1] = 91
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