What is the output of the following code? _____public class Test { public static void main(String[] args) { String s1 = "Welcome to Java!"; String s2 = s1; if (s1 == s2) System.out.println("s1 and s2 reference to the same String object"); else System.out.println("s1 and s2 reference to different String objects"); }}A. s1 and s2 reference to the same String objectB. s1 and s2 reference to different String objects
Question
What is the output of the following code? _____public class Test { public static void main(String[] args) { String s1 = "Welcome to Java!"; String s2 = s1; if (s1 == s2) System.out.println("s1 and s2 reference to the same String object"); else System.out.println("s1 and s2 reference to different String objects"); }}A. s1 and s2 reference to the same String objectB. s1 and s2 reference to different String objects
Solution
The output of the code will be "s1 and s2 reference to the same String object".
Here's the step by step explanation:
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The code first declares a String variable s1 and assigns it the value "Welcome to Java!".
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Then it declares another String variable s2 and assigns it the value of s1. This means that s2 is now pointing to the same object in memory that s1 is pointing to.
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The 'if' statement checks if s1 and s2 are pointing to the same object using the '==' operator. Since they are indeed pointing to the same object, the condition is true.
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Therefore, the code inside the 'if' block is executed, which prints out "s1 and s2 reference to the same String object".
So, the correct answer is A. "s1 and s2 reference to the same String object".
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