Code from Exercise1: import java.util.Scanner; public class Lab13a { /** * Remov

Question

Code from Exercise1:

import java.util.Scanner;

public class Lab13a {

/**
* Removes all space characters from a String
*
* @param input String to have spaces removed from
* @return the input String with spaces removed
*/
public static String removeSpaces(String input) {
StringBuilder result = new StringBuilder();
for (int i = 0; i < input.length(); i++) {
if (input.charAt(i) != ' ') {
result = result.append(input.charAt(i));
}
}
System.out.println("Without spaces : " +result);
return result.toString();
}

public static void main(String[] args) {
Scanner sc = new Scanner(System.in); // to get the string from the user
System.out.println("Enter a String to de-space : ");
removeSpaces(sc.nextLine()); // calling the method removeSpaces by passing the desired string given by the user

}

}

Explanation / Answer

Lab13b.java

import java.util.Scanner;

public class Lab13b {

   /**
   * expand each character from string by its position.
   *
   * @param input String to have each character expanded from String
   * @return the input String with each character expanded
   */
   public static String expandString(String input) {
   StringBuilder result = new StringBuilder();
   for (int i = 0; i < input.length(); i++) {
   for (int j=0; j<i; j++) {
   result = result.append(input.charAt(i));
   }
   }
   return result.toString();
   }
   public static void main(String[] args) {
   Scanner sc = new Scanner(System.in); // to get the string from the user
   System.out.println("Enter a String : ");
   String result = expandString(sc.nextLine()); // calling the method expanding each character from string by its position.
   System.out.println("Expanded : " +result);
   System.out.println("Good bye!");
   }
   }

Output:

Enter a String :
Howdy
Expanded : owwdddyyyy
Good bye!

Enter a String :
CSE1223
Expanded : SEE111222222222333333
Good bye!

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