MCQEasy1 mark
1
Choose the correct answers to the questions from the given options. (Do not copy the questions, write only the correct answers.)
Give the output of the following code: System.out.println("Good".concat("Day"));
Topic: concat() method
Previous-year question practice database
Try it
Pick an option and check your answer. The full worked answer is below either way.
Answer
Exam answer
(a) GoodDay.
Explanation
concat() joins the argument to the end of the calling string EXACTLY as given — it adds no space and changes no capital letters. So "Good" followed by "Day" is GoodDay. Option (b) assumes a space that is not there, and (c) and (d) assume a change of case that never happens. The + operator does the same job: "Good" + "Day".
In words
GoodDay.
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