Java Collection Framework Preliminary

Java Collection Framework

JCF (Java collections Framework)

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Collections

Collection provides an interface for some common operations on collections

Including:

Insert Add ()

Delete Remove ()

Determine if an element is not its member contains

Traverse iterator ()

list--ordered Collection

set--unordered Collection, no duplicate values allowed

map--Mapping

Set Preliminary

Familiarity with the use of ArrayList

Start learning to use the JDK API documentation

An implementation of the ArrayList ———— list interface

Ordered, allowing duplicate values to exist

Import java.util.*;
Class a{
public static void Main (String args[]) {
List<string> s=new arraylist<string> (); Add generic parameters when defining
S.add ("AAA");
S.add ("BBB");
S.add ("CCC"); add element
System.out.println (s);
S.remove (2); Delete Element
System.out.println (s);
System.out.println (s.get (0));
for (int i=0;i<s.size (); i++)//traversal
System.out.println (S.get (i));
}
}

Java Collection Framework Preliminary