Pattern:

***

****

Solution

Note: Don't jump directly to the solution, try it out yourself first.

Approach:

1)Require minimum 2 nested loop

2)Outer loop is for row

3)Inner loop is for column

4)Print in inner loop

Explanation:

1)The Pattern has 4 rows and each row corresponds to the row number (row 1 has 1 star, row 2 has 2 stars, etc.).

2)To print this pattern , we need two loops:

Outer loop for the rows

Inner loop for the columns(0 to row number).

3)In each iteration of the outer loop, the inner loop prints stars corresponding to the row number.

Video Solution

Java

public class Pattern {

public static void main(String[] args) {

// Number of rows in the pattern

int total_rows = 3;

// Outer loop for rows

for (int row = 0; row < total_row; row++) {

// Inner loop for columns

for (int col=0; col<=row ; row++) {

System.out.print("*");

}

// Move to the next line

System.out.println();

}

C++

#include <iostream>
using namespace std;

int main() {
    int rows = 4;  // number of rows

    // Outer loop for rows
        for (int row = 0; row < total_row; row++) {
            // Inner loop for columns
            for (int col=0; col<=row ; row++) {
                cout<<"*";
            }
        cout << endl;  // Move to the next line after printing a row
    }

    return 0;
}