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When to use StringBuilder in Java [duplicate]

...te code. Also I was a bit sceptic about big performance increase as object allocation is so cheap now. HOWEVER switching to explicit StringBuilder 1 instance gave me 0-1ms from ~120ms on 1000 iterations. So StringBuilder is still necessary for critical places in similar cases. –...
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How do I fix “for loop initial declaration used outside C99 mode” GCC error?

... gcc -std=c99 foo.c -o foo REF: http://cplusplus.syntaxerrors.info/index.php?title='for'_loop_initial_declaration_used_outside_C99_mode share | improve this answer | follow...
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JavaScript: location.href to open in new window/tab?

... window.open( 'https://support.wwf.org.uk/earth_hour/index.php?type=individual', '_blank' // <- This is what makes it open in a new window. ); share | improve this answer ...
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What does the tilde (~) mean in my composer.json file?

...swered Sep 24 '13 at 11:29 AlterPHPAlterPHP 12k44 gold badges4444 silver badges5050 bronze badges ...
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Email validation using jQuery

...how(); return false; } //ajax call php page $.post("send.php", $("#contactform").serialize(), function(response) { $('#contactform').fadeOut('slow',function(){ $('#success').html(response); $('#success')...
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Generate sql insert script from excel worksheet

...ndy tool which saves a lot of time at http://tools.perceptus.ca/text-wiz.php?ops=7 You just have to feed in the table name, field names and the data - tab separated and hit Go! share | improve th...
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What does “Auto packing the repository for optimum performance” mean?

... "If you let Git finish", and it can... fatal: Out of memory, malloc failed (tried to allocate 79610689 bytes) error: failed to run repack -- this is what I get for sticking our entire codebase into one git repo. Guess I'm going to kill apps and force repack "manually" ...
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Static linking vs dynamic linking

...us having to track problems at customer site because the wrong version was token. My conclusion is that I'd used static linking excepted:
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Loaded nib but the 'view' outlet was not set

...he rolling code: PTFilterUserVC *aFilterUserVC = [[PTFilterUserVC alloc] initWithNibName:@"FilterVC" bundle:nil]; //OPTIONAL.This is how 'I' am interested in present the view controller. [self.navigationController pushViewController:aFilterUserVC animated:YES]; ...
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Extract digits from a string in Java

...der constructor (such as input.length()) to ensure that it won't need to reallocate. You don't need to demand a String here; CharSequence suffices. Also, you can separate the allocation of the StringBuilder from the collection of non-digits by writing a separate function that accepts a CharSequence ...