Question

Assertion (A): The substring() method modifies the original String.

Reason (R): The substring() method can extract part of a String starting from a specific index.

Options

• (A) is true and (R) is false.

• (A) is false and (R) is true.

• Both (A) and (R) are true and (R) is the correct explanation of (A).

• Both (A) and (R) are true, but (R) is not the correct explanation of (A).

Answer 1

(A) is false and (R) is true.

Explanation:

• (A) is false: String objects are immutable in Java, so the original string cannot be changed.
• (R) is true: The method can be used as substring(beginIndex) or substring(beginIndex, endIndex) to extract a specific portion of a string.