MCQModerate1 mark
1
Choose the correct answers to the questions from the given options. (Do not copy the questions, write only the correct answers.)
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.
Topic: Immutability of Strings
Previous-year question practice database
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Pick an option and check your answer. The full worked answer is below either way.
Answer
Exam answer
(A) is false and (R) is true..
Explanation
The assertion is FALSE. Strings in Java are immutable: no String method ever changes the original — substring() returns a NEW String and leaves the old one untouched. That is why you must write s = s.substring(2) if you want to keep the result. The reason is TRUE, since substring() does extract from a given index. So (A) false, (R) true.
More from String Manipulation
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The output of the above statement is:2026Which of the following String methods returns a negative value?2026Give the output of the following program segment:
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System.out.println(S);
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