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What is the difference between syntax and semantics in programming languages?
...ement has no meaning (according to the C language rules) and thus it is an error even though the statement is syntactically correct.
If x is a pointer to some data type, the meaning of the statement is to "add sizeof(some data type) to the value at address x and store the result into the location at...
When do you use Java's @Override annotation and why?
... context) {
return true;
}
This change will not cause any compile time errors or warnings - but it completely changes the intended behavior of the subclass.
To answer your question: you should use the @Override annotation if the lack of a method with the same signature in a superclass is indic...
Xcode - ld: library not found for -lPods
I get these errors when I try to build an iOS application.
22 Answers
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How to validate IP address in Python? [duplicate]
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import socket
try:
socket.inet_aton(addr)
# legal
except socket.error:
# Not legal
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What does the JSLint error 'body of a for in should be wrapped in an if statement' mean?
I used JSLint on a JavaScript file of mine. It threw the error:
8 Answers
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How can I check if a program exists from a Bash script?
...ould I validate that a program exists, in a way that will either return an error and exit, or continue with the script?
37 ...
How to use the pass statement?
...e out the pass, the code wouldn't run.
You would then get an:
IndentationError: expected an indented block
To summarize, the pass statement does nothing particular, but it can act as a placeholder, as demonstrated here.
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Simplest way to read json from a URL in java
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Why i am getting this error "The constructor JSONObject(String) is undefined" in the line of JSONObject json = new JSONObject(jsonText); in "readJsonFromUrl" method..? @RolandIllig
– Karthick pop
Nov 5 '14 at...
Configuration System Failed to Initialize
...ted but located later part of the app.config. I can't help asking why this error happened. I thought XML elements don't need to be ordered.
– Tae-Sung Shin
Jul 28 '13 at 22:25
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dyld: Library not loaded … Reason: Image not found
...rying to run an executable I've been sent in Mac OS X, I get the following error
31 Answers
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