concat - Java Quiz Question

concat2120 Next-but

What will be the output of the following program?

public class SelfLearning {
    public static void main(String[] args) {
        String output = "";
        String school = "MERIT CAMPUS";
        String input = "JAVA SCHOOL";
        System.out.println(school);
        output.concat("self");
        output.concat(" learning ");
        for (int i = 0; i < input.length(); i++) {
            output = output.concat(input.charAt(i));
        }
        System.out.println(output);
    }
}

	MERIT CAMPUS JAVA SCHOOL
	MERIT CAMPUS self learning JAVA SCHOOL
	self learning JAVA SCHOOL
	Some other output
	Compilation Error or Runtime Error

Topic: concat() method In Java

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