Q. Given the following declarations String s1=new String("Hello") ; String s2=new String("there"); String s3=new String(); Which of the following are legal operations?
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(A)
s3=s1 + s2;.
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(B)
s3=s1 - s2;.
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(C)
s3=s1 & s2.
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(D)
s3=s1 && s2.
✅ Correct Answer: (A)
s3=s1 + s2;.