Question

Write a JAVA program:

Consider the method displayRowOfCharacters that displays any given character the specified number of times on one line.

For example, the call displayRowOfCharacters(‘*’, 5) produces the line *****

Implement this method by using recursion.

Answer 1

Here is code:

import java.io.*;
import java.util.Scanner;
class DisplayChar
{
public static void main(String []args){
char c;
int number;
Scanner in = new Scanner(System.in);
System.out.print("Enter a character : ");
c = in.next().charAt(0); // read character
System.out.print("Enter a number line :");
number = in.nextInt(); // reads number
displayRowofCharacters(c,number); // call method displayRowofCharacters()
}
public static void displayRowofCharacters(char c, int count)
{
if(count >0) //recursion loops count > 0
{
System.out.print(c); //print the c
displayRowofCharacters(c,count-1); // call method displayRowofCharacters() but count -1
}
else
{
return;
}
}
}

Output:

Enter a character: * Enter a number line :4 *sh-4.3$