Exam 1z0-808 topic 1 question 10 discussion

Match 1

public static void main(String[] args) { StringBuilder sb = new StringBuilder("Java"); String s = "Java"; if (sb.toString().equals(s.toString())) { System.out.println("Match 1"); } else if (sb.equals(s)) { System.out.println("Match 2"); } else { System.out.println("No Match"); } Answer A

Answer A

Answer is A. As sb.toString() => new string object gets created and String equals() method do content check

Answer- A

The answer is A

sb.toString() => converts it into String. and thereafter, using equals() method on String will do the value comparison. So, answer is A since the values are equal.

Inconvertible type error between String "Java" and StringBuilder "Java". To resolve StringBuilder to String append .toString() method to sb

It is very simple since equals method compare by value.

A tostring convert a StringBuffer to a string