Chapter 7.2, Problem 9STQ

Given code:

//Define "Main" class

class Main

{

    //Define main function

    public static void main(String[] args)

    {

        //Declare array "a" in "char" type

        char[] a = new char[3];

        //Assign each index of array "a" to char 'a'

        for(int i = 0; i < a.length; i++)

            a[i] = 'a';

        //Declare and initializes array "b" to "a"

        char[] b = a;

//Display the value of index "1" in array "a" and "b"

System.out.println("a[1] = " + a[1] + ", b[1] = " + b[1]);

//Display the value of index "2" in array "a" and "b"

System.out.println("a[2] = " + a[2] + ", b[2] = " + b[2]);

        //Assign index 2 of array "b" to 'b'

        b[2] = 'b';

//Display the value of index "1" in array "a" and "b"

System.out.println("a[1] = " + a[1] + ", b[1] = " + b[1]);

//Display the value of index "1" in array "a" and "b"

System.out.println("a[2] = " + a[2] + ", b[2] = " + b[2]);

    }

}

Reasons for displaying given output:

• • The line “char[] a = new char[3];” implies declare an array “a” in “char” type which stores the “3” array elements.
• • The “for” loop implies assign the index of each array “a” to ‘a’.
  • ○ Value of “a[0]” is ‘a’.
  • ○ Value of “a[1]” is ‘a’.
  • ○ Value of “a[2]” is ‘a’.
• • The line “char[] b = a;” implies declare and assign the array “b” to “a”.
• • The line “System.out.println("a[1] = " + a[1] + ", b[1] = " + b[1]);” implies print the value in index 1 of array “a” and “b”.
  • ○ The given statement display value for “a[1]” is “a” and “b[1]” is “a”...