String - Java Quiz Question

School2226

String1370 Next-but

What will be the output of the following program?

public class SwitchBoard {
    public static void main(String[] ats) {
        String x = "mno";
        x.toUpperCase();
        String y = x.replace('n', 'n');
        y = y + "abc";
        System.out.println(y);
    }
}

	mnoabc
	MnOabc
	MNOabc
	abcMnO
	abcmno
	Compilation Error or Runtime Error

Topic: toLowerCase() And toUpperCase() Methods In Java

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Score more than 2 points

1	Convert All Letters To Upper Case
2	Remove preoccured characters from the sentence
3	Remove preoccured characters from the sentence remove extra spaces
4	Prefix first occurrence of every character in the input string
5	String
6	String1370
7	Friend
8	Friend2223
9	School
10	School2226