Given the following two lines of code, what can be said about s1 and s2? String s1 = "testing" + "123";
String s2 = new String("testing 123");
A) s1 and s2 are both references to the same String object.
B) the line declaring s1 is legal in Java; the line declaring s2 will produce a syntax error.
C) s1 and s2 are references to different String objects.
D) s1 and s2 will compare "equal."
E) None of the above

Question

Quizplus · Accepted Answer

s1 is creating a new string by concatenating "testing" and "123" using the + operator. This will create a new String object with the value "testing123". 
s2 is creating a new String object with the value "testing 123" using the String constructor. These are two different String objects, so the answer is C.

Given the Following Two Lines of Code, What Can Be