A Simple Method for sorting Arrays

Source: Internet
Author: User

When it comes to array sorting, many people write Bubble Sorting by themselves, which is difficult and difficult. The official team provides us with a very simple way to sort arrays quickly and well.
First, implement the interface Comparator.
[Java]
Private class ComparatorByDate implements Comparator <String> {
 
@ Override
Public int compare (String lhs, String rhs ){
SimpleDateFormat sdf = new SimpleDateFormat ("yyyyMMdd_HHmmss ");
Try {
Date sDate = sdf. parse (lhs );
Date rDate = sdf. parse (rhs );

Long diff = sDate. getTime ()-rDate. getTime ();
If (diff> 0 ){
Return 1;
} Else if (diff <0 ){
Return-1;
}
} Catch (ParseException e ){
E. printStackTrace ();
}
Return 0;
}

}

Next, use Arrays. sort () to sort the array.
[Java]
Arrays. sort (titlesArray, new ComparatorByDate (); // titlesArray is a String Array
 

From wxg630815

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