Question

• How can i print a diamond implementing these methods
• public static void printNChars(int n, char c)). This method will print n times the character c in a row,
• public static void printDiamond(int size, char edgeChar, char fillChar). This method will call printNChars() method to print the shape. It will use the edgeChar to print the sides and the fillChar to fill the interior of the shape. The shape will have a height and a width of the given size.
• public static void printDiamond(Scanner scnr). This method will prompt the user for entering the size, the edgeChar and the fillChar. We limit the size to no more than 80 characters. Again, this method must validate the user's input. Notice that this method has the same name as the previous method but has a different set of parameters.

Answer 1

thanks for the question, here is the full java class with screenshot

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package bank;
import java.util.Scanner;

public class Diamond {



    public static void printNChars(int n, char c){
        for(int i=1; i<=n;i++)
            System.out.print(c);
    }

    public static void printDiamond(int size, char edgeChar, char fillChar){
        int topHeight= size/2;
        for(int row=0;row<=topHeight;row++){
            printNChars(size-row,' ');
            System.out.print(edgeChar);
            printNChars(2*row-1,fillChar);
            if(row!=0)
            System.out.println(edgeChar);
            else
                System.out.println();
        }
        for(int row=topHeight;row>=0;row--){
            printNChars(size-row,' ');
            System.out.print(edgeChar);
            printNChars(2*row-1,fillChar);
            if (row!=0)
            System.out.println(edgeChar);
        }
    }

    public static void printDiamond(Scanner scnr){

        int size=0;
        while (size<1 || size>80){
            System.out.print("Enter size (limit 1-80): ");
            size=scnr.nextInt();
        }
        scnr.nextLine();
        System.out.print("Enter edge character: ");
        char edge = scnr.nextLine().charAt(0);
        System.out.print("Enter fill character: ");
        char fill = scnr.nextLine().charAt(0);
        printDiamond(size,edge,fill);
    }

    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        printDiamond(scanner);
    }
}

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