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I know that there exist multidimensional array, but I think I do not need that in my case! I tried this code.. but could not know how to initialize with initializer list..
double[][] a=new double[2][];// ={{1,2},{3,4}};
Thank you
PS: If you wonder why I use it: I need data structure that when I call obj[0] it returns an array.. I know it is strange..
Thanks
749
Jagged array is array of arrays such that member arrays can be of different sizes, i.e., we can create a 2-D array but with a variable number of columns in each row. These type of arrays are also known as Jagged arrays.
A jagged array is an array whose elements are arrays, possibly of different sizes. A jagged array is sometimes called an "array of arrays." The following examples show how to declare, initialize, and access jagged arrays.
To initialize an array of arrays, you can use new keyword with the size specified for the number of arrays inside the outer array. int[][] numbers = new int[3][]; specifies that numbers is an array of arrays that store integers.
In order to access items in a nested array, you would add another index number to correspond to the inner array. In the above example, we accessed the array at position 1 of the nestedArray variable, then the item at position 0 in the inner array.
Afaik, the most simple and keystroke effective way is this to initialize a jagged array is:
double[][] x = new []{new[]{1d, 2d}, new[]{3d, 4.3d}};
Edit:
Actually this works too:
double[][] x = {new[]{1d, 2d}, new[]{3d, 4.3d}};
This should work:
double[][] a = new double[][]
{
new double[] {1.0d, 2.0d},
new double[] {3.0d, 4.0d}
};
As you have an array of arrays, you have to create the array objects inside it also:
double[][] a = new double[][] {
new double[] { 1, 2 },
new double[] { 3, 4 }
};
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