A method secret() of a class F is shown below:

public int secret(String[] stringArray, int n) { int num = 0;

for (int i=0; i= 0)

num++; return num;

}

A program segment using the method is:

F f = new F();

String[] array01 = {"an", "easy", "exam", "on", "Java"}; System.out.println(f.secret(array01, 2));

array01 = new String[0]; System.out.println(f.secret(array01, 3));

1. Write down the output when the above segment is executed.

2. Explain, in a paragraph, what is the purpose of the method secret().