Question

To get full credit for this assignment you must:

(1) answer each question - make sure you answer every part of question

AND

(2) respond to at least 2 of your classmates posts

(NOTE: You should not just agree/ disagree with the post. You need to provide justified explanation

of your agreement/disagreement. Be respectful at all times.

Do NOT revise your post after reading other student posts.)

In your own words, answer all questions (4 points each):

1. [5pts] Chapter 8 - Write a method that displays the third letter of a string (p. 472 in textbook) that is given to the method (i.e. "Jacob" returns the letter 'c')
2. [5pts] Chapter 8 - Write a method that modifies a string (p. 488 in textbook) using the stringVar.Remove(start) where the method removes the third letter of a string that is given to the method (i.e. "Jacob" returns "Jaob")
3. [5pts] Chapter 9 - Write a statement that creates an instance of the Transcript class.
4. [5pts] Chapter 9 - Suppose that an application declares an array of class objects with the following statement:
   • Employee [ ] employees = new Employee[9];
   • Write a loop that creates 10 instances of the class and assigns them to the elements of the array

Answer 1

P.S : I think there is a problem in the question number 4. as they have asked to assign 10 objects into the array whose length is 9 (given). I have assumed the array size as 10. Please go through the solutions minutely before giving a disilke. Thank you.

1. Write a method that displays the third letter of a string (p. 472 in textbook) that is given to the method (i.e. "Jacob" returns the letter 'c')

public class Main
{
public static char displayThird(String s)
{
char a[]=s.toCharArray();
return(a[2]);
}
   public static void main(String[] args) {
       System.out.println("The third letter is: "+displayThird("Jacob"));
   }
}

2. Write a method that modifies a string (p. 488 in textbook) using the stringVar.Remove(start) where the method removes the third letter of a string that is given to the method (i.e. "Jacob" returns "Jaob")

public class Main
{
public static String remove(String s)
{
return(s.substring(0,2)+s.substring(3));
}
   public static void main(String[] args) {
       System.out.println("The string is: Jacob");
       System.out.println("The string after removing the third letter: "+ remove("Jacob"));
   }
}

3.Write a statement that creates an instance of the Transcript class.

Transcript transcript = new Transcript( );

4.Suppose that an application declares an array of class objects with the following statement:

• Employee [ ] employees = new Employee[9];
• Write a loop that creates 10 instances of the class and assigns them to the elements of the array

for ( i = 0 ; i<10 ; i++)

{  

Employee emp = new Employee( );

employees [ i ] = emp;

}