If statement with String comparison fails [duplicate]
In your example you are comparing the string objects, not their content.
Your comparison should be :
if (s.equals("/quit"))
Or if s string nullity doesn't mind / or you really don't like NPEs:
if ("/quit".equals(s))
To compare Strings for equality, don't use ==. The == operator checks to see if two objects are exactly the same object:
In Java there are many string comparisons.
String s = "something", t = "maybe something else";
if (s == t) // Legal, but usually WRONG.
if (s.equals(t)) // RIGHT
if (s > t) // ILLEGAL
if (s.compareTo(t) > 0) // also CORRECT>