You seem to like String puzzles. What will be the output of this program?

@EclipseJavaIDE @java Unsure if toString on a String is required to return same object. Alters the outcome if it could, say, return a stack-allocated value instead...

@EclipseJavaIDE I got it wrong.

@EclipseJavaIDE I think it throws a NPE. "ABC".toString() returns the same value. "ABC"=="ABC" is true, because String cache. b is true. So... NullPointerException on Y.equals(...) (must be Y == null to be safe) if B = false, the short circuit logic would prevented NPE.

@EclipseJavaIDE I kill the guy who codes that.

@EclipseJavaIDE False. No NP error as right side to && won't execute

@EclipseJavaIDE NPE on line 10

@EclipseJavaIDE NPE

@EclipseJavaIDE true

@EclipseJavaIDE @jSparrowpicks typical sample of how NOT to write Java programs and produce code smells and decrease readability within a few lines. Totally irrelevant what the output of the program would be, the output of the programmer is major reason to rethink further usability ...

@EclipseJavaIDE @java I'm guessing false, since && is lazy evaluated

@EclipseJavaIDE Depends on Java version, Java < 7 → false, Java >= 7 → NPE. Also your variables naming doesn't correspond to Eclipse Coding Conventions...

@EclipseJavaIDE @java I definitely see a null point ex

@EclipseJavaIDE @java Good old NPE.

@EclipseJavaIDE @java true

@EclipseJavaIDE @java NullPointerException

@EclipseJavaIDE @java Null pointer Exception....since function called on Y

@EclipseJavaIDE @java NPE

@EclipseJavaIDE True?

@EclipseJavaIDE @java NullPointerException will be thrown at the runtime because Y is pointing to null

@EclipseJavaIDE False

@EclipseJavaIDE From Object.equals() java docs: "For any non-null reference value x, x.equals(null) should return false." and since Y is null ... NPE exception is thrown. Would have been evaluated to false if Y was initialized.

@EclipseJavaIDE @java Null pointer exception at line #10

@EclipseJavaIDE @java NPE.

@EclipseJavaIDE @java NullPointerException?

@EclipseJavaIDE @java NullPointerException

@EclipseJavaIDE @java NPE

@EclipseJavaIDE @java „ABC“.toString == X Is very interesting

@EclipseJavaIDE NPE on line 10 !!

@EclipseJavaIDE @EclipseFdn False

@EclipseJavaIDE @java Returno false

@EclipseJavaIDE @java NPE !!!!

@EclipseJavaIDE False. toString returns a new String instance. The == is comparing references of X and "ABC".toString(). The NPE never is throwed.

@EclipseJavaIDE @java NPE

@EclipseJavaIDE @java Null Pointer Exception

@EclipseJavaIDE NPE