Need java code: Write a program class named SquareDisplay that asks the user for

ID: 3857216 • Letter: N

Question

Need java code:

Write a program class named SquareDisplay 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. For example, if the user enters 5, the program should display the following: XXXXX XXXXX XXXXX XXXXX XXXXX

INPUT and PROMPTS. The program prompts for an integer as follows: "Enter an integer in the range of 1-15: ".

OUTPUT. The output should be a square of X characters as described above.

CLASS NAMES. Your program class should be called SquareDisplay

Explanation / Answer

Hi Below is your code: -

I have added exception handling also like number not in correct format or it has value less than 1 and greater than 15.

Note that in question your output is as follows

XXXXX XXXXX XXXXX XXXXX XXXXX

for this kind of output, the code is : -

import java.util.Scanner;

//Class declaration

public class SquareDisplay {

// Main function

public static void main(String[] args) {

// Scanner object to get the input

Scanner sc = new Scanner(System.in);

// flag which will set true on valid input

boolean done = false;

// loop till a valid input is obtained

while (!done) {

try { // try catch to check if only number is inserted.

System.out.print("Enter an integer in the range of 1-15: ");

int index = Integer.parseInt(sc.next());

if (index < 1 || index > 15) { // checking if input is in valid range

System.out.println("Please enter number between 1 and 15 only.");

} else {

//printing the square

for (int i = 0; i < index; i++) {

for (int j = 0; j < index; j++) {

System.out.print("X");

}

System.out.print(" ");

}

done = true;

sc.close();

}

} catch (NumberFormatException e) {

System.out.println("Please enter a valid number.");

}

Sample run: -

Enter an integer in the range of 1-15: 0
Please enter number between 1 and 15 only.
Enter an integer in the range of 1-15: kjcndj
Please enter a valid number.
Enter an integer in the range of 1-15: 5
XXXXX XXXXX XXXXX XXXXX XXXXX

If you want output as a square i.e.

XXXXX
XXXXX
XXXXX
XXXXX
XXXXX

Then code is