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Java Programming · Q56

Constructors and Methods

Programming · Java Programming · question 56

Q56

What will be the output? public class Test public static void main(String[] args) String value = "abc"; changeValue(value); System.out.println(value); public static void changeValue(String a) a = "xyz";

A.
abc
Answer
B.
xyz
C.
Compilation fails
D.
Compilation clean but no output
E.
None of these

Answer: Option A

Solution

Answer: Option A
Solution:

Java pass reference as value. passing the object reference, and not the actual object itself. Simply reassigning to the parameter used to pass the value into the method will do nothing, because the parameter is essentially a local variable.