Question

Write a piece of code that constructs a jagged two-dimensional array of integers named jagged with five rows and an increasing number of columns in each row, such that the first row has one column, the second row has two, the third has three, and so on. The array elements should have increasing values in top-to-bottom, left-to-right order (also called row-major order). In other words, the array's contents should be the following: 1 2, 3 4, 5, 6 7, 8, 9, 10 11, 12, 13, 14, 15
PROPER OUTPUT: jagged = [[1], [2, 3], [4, 5, 6], [7, 8, 9, 10], [11, 12, 13, 14, 15]]
INCORRECT CODE:
int jagged[][] = new int[5][];
for(int i=0; i<5; i++){
jagged[i] = new int[i+1]; // creating number of columns based on current value
for(int j=0, k=i+1; j jagged[i][j] = k;
}
}
System.out.println("Jagged Array elements are: ");
for(int i=0; i for(int j=0; j System.out.print(jagged[i][j]+" ");
}
System.out.println();
}
expected output:jagged = [[1], [2, 3], [4, 5, 6], [7, 8, 9, 10], [11, 12, 13, 14, 15]]
current output:
Jagged Array elements are:
1
2 3
3 4 5
....

Answer 1

Answer:

Explanation:

The following code is written in Java and it uses nested for loops to create the array elements and then the same for loops in order to print out the elements in a pyramid-like format as shown in the question. The output of the code can be seen in the attached image below.

class Brainly {

   public static void main(String[] args) {

       int jagged[][] = new int[5][];

       int element = 1;

       for(int i=0; i<5; i++){

           jagged[i] = new int[i+1]; // creating number of columns based on current value

           for(int x = 0; x < jagged[i].length; x++) {

               jagged[i][x] = element;

               element += 1;

           }

       }

       System.out.println("Jagged Array elements are: ");

       for ( int[] x : jagged) {

           for (int y : x) {

               System.out.print(y + " ");

           }

           System.out.println(' ');

       }

       }

   }