JAVA MCQs MCQ: In the following Java code, which code fragment should be inserted at line 3 so that the output will be: | Extra Education

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In the following Java code, which code fragment should be inserted at line 3 so that the output will be:

Correct Answer: sb1.append("abc"); s1 = s1.concat("abc");

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JAVA MCQs MCQ: In the following Java code, which code fragment should be inserted at line 3 so that the output will be: | Extra Education