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What is the difference between “Class.forName()” and “Class.forName().newInstance()”?

...() { System.out.println("Hi!"); } public static void main(String[] args) throws Exception { Class clazz = Class.forName("test.Demo"); Demo demo = (Demo) clazz.newInstance(); } } As explained in its javadoc, calling Class.forName(String) returns the Class object...
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How do I declare and initialize an array in Java?

...25,36,85,28,96,47).sorted().toArray(); // Sort For classes, for example String, it's the same: String[] myStringArray = new String[3]; String[] myStringArray = {"a", "b", "c"}; String[] myStringArray = new String[]{"a", "b", "c"}; The third way of initializing is useful when you declare the ar...
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Enable Vim Syntax Highlighting By Default

...your $HOME as .vimrc. It switches on a lot of basic stuff for you automatically (syntax, search highlighting, backup etc). You can then tweak it based on your needs. – oyenamit Jun 30 '12 at 14:51 ...
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Java - How to create new Entry (key, value)

...alue = value; return old; } } And then use it: Map.Entry<String, Object> entry = new MyEntry<String, Object>("Hello", 123); System.out.println(entry.getKey()); System.out.println(entry.getValue()); ...
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What is the best way to deal with the NSDateFormatter locale “feechur”?

... what will be the date formatter for "NSString *dateStr = @"2014-04-05T04:00:00.000Z";" ? – Agent Chocks. May 22 '14 at 11:59 ...
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Retrieving Android API version programmatically

... Why not use the String android.os.Build.VERSION.SDK instead? It works for all Android versions – PYK Oct 30 '19 at 1:13 ...
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htmlentities() vs. htmlspecialchars()

...L entities if they are to preserve their meanings. This function returns a string with some of these conversions made; the translations made are those most useful for everyday web programming. If you require all HTML character entities to be translated, use htmlentities() instead. The difference i...
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Total size of the contents of all the files in a directory [closed]

... @Arkady I have tried your solution on CentOS and Ubuntu, and there is a small error. You want "du -sbh". The "-h" flag must come last. – theJollySin Oct 16 '15 at 22:49 ...
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ArrayIndexOutOfBoundsException when using the ArrayList's iterator

... The easiest way to write this loop is using the for-each construct: for (String s : arrayList) if (s.equals(value)) // ... As for java.lang.ArrayIndexOutOfBoundsException: -1 You just tried to get element number -1 from an array. Counting starts at zero. ...
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BCL (Base Class Library) vs FCL (Framework Class Library)

...iterally that, the base. It contains basic, fundamental types like System.String and System.DateTime. The Framework Class Library (FCL) is the wider library that contains the totality: ASP.NET, WinForms, the XML stack, ADO.NET and more. You could say that the FCL includes the BCL. ...