Create dynamic 2d array in java
// Create dynamic 2d array in java
import java.util.ArrayList;
import java.util.List;
public class Dynamic2dArray
{
public static void main(String[] args)
{
List<int[]> li = new ArrayList<>();
li.add(new int[]{2,4,6});
li.add(new int[]{3,5});
li.add(new int[]{1});
// element at row 0, column 0
System.out.println("Element at [0][0]: " + li.get(0)[1]);
// get element at row : 1, column : 1
System.out.println("Element at [1][1]: " + li.get(1)[1]);
}
}
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7
int** arr = new int*[10]; // Number of Students
int i=0, j;
for (i; i<10; i++)
arr[i] = new int[5]; // Number of Courses
/*In line[1], you're creating an array which can store the addresses
of 10 arrays. In line[4], you're allocating memories for the
array addresses you've stored in the array 'arr'. So it comes out
to be a 10 x 5 array. */
Thank you!
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0
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