Question

1. Write a Java program that takes in a string and a number and prints back the string from the number repeatedly until the first character... for example Pasadena and 4 will print PasaPasPaP.
   1. Ask the user for the string and a number
   2. Print back the string from the number repeatedly until the first character
2. For both programs please utilize:
   1. methods
   2. arrays
   3. loops
3. Turn in screenshots

Answer 1

I have uploaded the Images of the code, Typed code and Output of the Code. I have provided explanation using comments(read them for better understanding).

Images of the Code:

Note: If the below code is missing indentation please refer code Images

Typed Code:

//importing required packages
import java.util.*;
import java.lang.*;
public class Main
{
public static void main(String[] args)
{
   //call a method
   inputs();
   }
//method called
static void inputs()
{
//scanner is used to get inputs from the user
       Scanner scnr = new Scanner(System.in);
       System.out.print("Enter String: ");
       //getting string input from the user
       String str = scnr.nextLine();
       System.out.print("Enter Number: ");
       //getting number input from the user
       int num = scnr.nextInt();
       //call a method
       string(str,num);
}
//method called
static void string(String s, int n)
{
//try block is used to check the errors in the block of code
try
{
//initializing empty string
String str = "";
//initializing character array with size of string
char[] c = new char[s.length()];
//for loop will iterate size of string times
for (int i = 0; i < s.length(); i++)
{
//for every iteration, storing a single character
//in character array from string
c[i] = s.charAt(i);
}
//storing n value in a
int a = n;
//for loop will iterate n times
for (int i = 0; i < n; i++)
{
//for loop will iterate a times
for(int j = 0; j<a; j++)
{
//for every iteration, storing a single character
//from character array to string
str += c[j];
}
//decreasing a
a--;
}
//printing string
System.out.print(str);
}
//catch block will handle the errors
catch(Exception e)
{
//printing that there is an error occured
System.out.print("An Error Occured");
}
}
}
//code ended here

Output:

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