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Why does appending “” to a String save memory?
... a look at the substring() method in the JDK String source for more info.
EDIT: To answer your supplementary question, constructing a new String from the substring will reduce your memory consumption, provided you bin any references to the original String.
NOTE (Jan 2013). The above behaviour has ...
Remove NA values from a vector
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Programmatically trigger “select file” dialog box
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thiagowfx
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Ubuntu, vim, and the solarized color palette
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Why is [1,2] + [3,4] = “1,23,4” in JavaScript?
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How to clean node_modules folder of packages that are not in package.json?
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What exactly is Heroku?
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List comprehension in Ruby
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“Could not load type [Namespace].Global” causing me grief
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Curious null-coalescing operator custom implicit conversion behaviour
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