The decorated object for the use of length,length () and size () in Java

Source: Internet
Author: User

1 The Length property is said for an array, and this property represents the size of the array


The 2 length () method is for string literals, and length () is a string that


The 3size () method is said for a generic collection, size () indicates how many elements of the generic type

public static void main (string[] Args) {
String []list={"aa", "bbb", "cccc"};
String a= "aabbcc";
System.out.println (list.length);
System.out.println (a.length ());
list<object> array=new ArrayList ();
Array.add (a);
System.out.println (array.size ());
}
The output value Is:
3
6
1

The decorated object for the use of length,length () and size () in Java

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