What will be the output of the program? String s = "ABC"; s.toLowerCase(); s += "def"; System.out.println(s);

What will be the output of the program? String s = "ABC"; s.toLowerCas

1.	What will be the output of the program? `String s = "ABC"; s.toLowerCase(); s += "def"; System.out.println(s);`
A.	ABC
B.	abc
C.	ABCdef
D.	Compile Error
Answer» D. Compile Error

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What will be the output of the program?
`String s = "ABC"; s.toLowerCase(); s += "def"; System.out.println(s);`

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