n Java, what happens when you reassign a modified String to the same reference variable, as shown in the code below?String s = "Hello";s = s.concat(" World");a)The original String is updated in placeb)The reference variable s is deletedc)A new reference variable is createdd)A new String object is created, and s refers to it
Question
n Java, what happens when you reassign a modified String to the same reference variable, as shown in the code below?String s = "Hello";s = s.concat(" World");a)The original String is updated in placeb)The reference variable s is deletedc)A new reference variable is createdd)A new String object is created, and s refers to it
Solution
d) A new String object is created, and s refers to it
In Java, Strings are immutable, which means once a String object is created, it cannot be changed. If you perform any operation on a String, it always results in a new String. So, when you concatenate " World" to the String s, a new String "Hello World" is created. The reference variable s is then updated to refer to this new String object. The original String "Hello" is not modified and is still in the memory until it's garbage collected.
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