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SquareDisplay.java
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SquareDisplay.java
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/**
* Write a program that asks the user for a positive
* integer no greater than 15. The program should then
* display a square on the screen using the character 'X'.
* The number entered by the user will be the length of
* each side of the square.
*/
import java.util.Scanner;
public class SquareDisplay {
public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
// Ask the user for a positive integer no greater than 15
int size;
do {
System.out.print("Enter a positive integer no greater than 15: ");
size = scanner.nextInt();
if (size < 1 || size > 15) {
System.out.println("Invalid input. Please enter a number between 1 and 15.");
}
} while (size < 1 || size > 15);
// Display the square using 'X' characters
for (int i = 0; i < size; i++) {
for (int j = 0; j < size; j++) {
System.out.print("X");
}
System.out.println(); // Move to the next line
}
scanner.close();
}
}
/**
* Explanation:
The program prompts the user for an integer between 1 and 15.
Input validation ensures the user provides a valid input within
this range. It then uses two nested loops to print a square of 'X'
characters, where the size of each side is equal to the
user-entered number.
Enter a positive integer no greater than 15: 5
XXXXX
XXXXX
XXXXX
XXXXX
XXXXX
*/