Java length,length (), size () Detailed and Difference _java

Length,length () in Java, size () difference

Length property: Used to get the length of the array.

eg

int ar[] = new int{1,2,3}

/**
* Array with the Length property to get the lengths/

int lenar = ar.length;//here lenar=3
System.out.println ("ARR length:" +lenar);

Length () Method: Used to get the length of the string.

String str = "Hello world Java";
the/** * string uses the length () method to obtain
the lengths */

int lenstr = Str.length ();//Here lenstr=16
System.out.println ("str Length (): "+lenstr";

Size () Method: lets you get the number of elements in a generic collection.

eg

/**
* Collection is the largest parent interface for single value saving in the entire class set, so it is necessary to instantiate it with a specific subclass * *
collection<string> col = new ArrayList <String> ();
Col.add ("Hello");
Col.add ("World");
Col.add ("Java");
/**
* Class set framework using the size () method to take the number of elements/
int sizecol = Col.size ();//Here sizecol=3
System.out.println ("Col size : "+sizecol);

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