Java/07-Java-Programs/057-Number-Pattern.java at main · shaikbasha-dev/Java · GitHub

History

81 lines (62 loc) · 2.25 KB

Raw

* ============================================================================

* Program Name : Number Pattern

* File Name : 057-Number-Pattern.java

* Class Name : NumberPattern

* Description:

* This program accepts the number of rows from the user and prints

* a Number Pattern using nested for loops.

* Objective:

* - Understand user input using the Scanner class.

* - Learn how to use nested for loops.

* - Print a Number Pattern.

* Author : Shaik Mahaboob Basha

* Repository : 01-Core-Java

* Folder : 08-Java-Programs

* ============================================================================

import java.util.Scanner;

public class NumberPattern {

// The main() method is the entry point of every Java application.

public static void main(String[] args) {

// Create a Scanner object to read input from the keyboard.

Scanner scanner = new Scanner(System.in);

// Ask the user to enter the number of rows.

System.out.print("Enter the Number of Rows: ");

// Read the number of rows entered by the user.

int rows = scanner.nextInt();

// Check whether the entered number of rows is valid.

if (rows <= 0) {

// Display an error message.

System.out.println("Please enter a positive integer.");

// Example Output:

// Please enter a positive integer.

} else {

// Display the heading.

System.out.println("Number Pattern:");

// Outer loop controls the number of rows.

for (int i = 1; i <= rows; i++) {

// Inner loop prints the current row number.

for (int j = 1; j <= i; j++) {

// Print the current row number.

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

}

// Move to the next line after printing one row.

System.out.println();

}

// Example Output:

// Enter the Number of Rows: 5

// Number Pattern:

// 1

// 2 2

// 3 3 3

// 4 4 4 4

// 5 5 5 5 5

}

// Close the Scanner object to release system resources.

scanner.close();

}

Java/07-Java-Programs/057-Number-Pattern.java at main · shaikbasha-dev/Java · GitHub

Expand file tree

Breadcrumbs

057-Number-Pattern.java

Latest commit

History

Breadcrumbs

057-Number-Pattern.java

File metadata and controls