Question

Use java programming for the following questions to have the solutions ready within today Jan 3 2020 at or before 8:00PM GMT+8 time zone:

Question 5

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<stringArray.length; i++)

if (stringArray[i].indexOf("a", n) >= 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().

Answer 1

a.

OUTPUT

b.

EXPLANATION

INPUT: secret method takes an array of strings and an integer, n

OUTPUT: secret method returns the number of strings that have letter 'a' in the strings from the index n

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